DENVER -- Among many topics not mentioned during Wednesday night's first presidential debate was Mitt Romney's controversial comment about 47 percent of Americans viewing themselves as "entitled" to government benefits.

That comment, videotaped at a private Romney fundraiser for wealthy donors, has been at the epicenter of President Barack Obama's attacks on his GOP opponent over the past few weeks, with his campaign even putting out an ad on the topic. Its absence in the debate, therefore, was conspicuous and a bit head-scratching.

"Seriously, Dems, can you believe that Obama never used the 47% video? Incredible!" tweeted political analyst Larry Sabato.

"Why not push the 47 percent comment that is the subject of saturation ads? Keep pres above it? Or deny Gov Romney chance to explain it?" wondered Carl Hulse of The New York Times.

Some of the spin coming from the Obama campaign and its surrogates after the debate seemed contradictory or unbelievable. Maryland Gov. Martin O'Malley argued that Obama didn't mention the 47 percent comment because "he's a gentleman."

"I think the president wanted to come in tonight and not deliver attack lines," said Obama campaign spokeswoman Jen Psaki. "He wanted to lay out what his plans were -- what his economic plans were, how he was going to protect health care and we did exactly that."

Obama campaign manager Jim Messina, meanwhile, said, "It just didn't come up in the course of the conversation. We continue to believe it is a very clear difference. Gov. Romney is trying to run away from that comment. It just didn't come up tonight."

These explanations don't work together. Either Obama was planning to discuss it and it didn't come up, or he wasn't planning on offering "zingers" at all. A top Obama official, when asked for a concise explanation, conceded that avoiding it was part of a strategic decision before the debate.

"We weren't going to do a bunch of political stuff tonight," the aide said, adding that the debate "was about looking in the camera and laying out the choice and the plans."

At the very least, Obama campaign senior adviser Robert Gibbs said on Tuesday that he expected moderator Jim Lehrer to bring up the topic.

"I have no doubt that the moderator is going to ask Romney maybe to spend a little bit more time telling us more elegantly, in his words, what he meant by what he said," Gibbs said, adding that he expected Obama to say "47 percent" 47 times.

Romney senior campaign adviser Kevin Madden also said he believed "a lot" of the reason it didn't come up was because Lehrer never raised it.

One Republican official had another explanation for why Obama didn't bring it up: "cockiness."

"I think it was a loser for the president to bring something like that up, because the president's created a monstrosity in this government," added Republican National Committee chair Reince Priebus.

Still, it seemed like the Romney campaign was perhaps surprised the famous remarks were never mentioned. When asked whether Romney had prepared a response, Madden replied, "You prepare for everything, right? Sort of like the Boy Scouts."

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  • US-VOTE-2012-DEBATE

    US President Barack Obama (R) greets Republican presidential candidate Mitt Romney (L) following the first presidential debate at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney went head-to-head in their debut debate. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

  • US-VOTE-2012-DEBATE

    US President Barack Obama (R) greets Republican presidential candidate Mitt Romney (L) following the first presidential debate at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney went head-to-head in their debut debate. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

  • US-VOTE-2012-DEBATE

    US President Barack Obama (R) greets Republican presidential candidate Mitt Romney (L) following the first presidential debate at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney went head-to-head in their debut debate. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

  • US-VOTE-2012-DEBATE

    US President Barack Obama (L) and Republican presidential candidate Mitt Romney finish their debate at the University of Denver in Denver, Colorado, October 3, 2012. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney go head-to-head in their debut debate. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

  • Republican presidential nominee Mitt Romney, left, shakes hands with President Barack Obama following the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Eric Gay)

  • President Barack Obama shakes hands with Republican presidential nominee Mitt Romney after the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Pool-Michael Reynolds)

  • President Barack Obama hugs First lady Michelle Obama after the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Pool-Michael Reynolds)

  • Republican presidential nominee Mitt Romney, left, and President Barack Obama speak after the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Eric Gay)

  • Mitt Romney, Barack Obama

    President Barack Obama and Republican presidential candidate and former Massachusetts Gov. Mitt Romney talk at the end of the first presidential debate in Denver, Wednesday, Oct. 3, 2012. (AP Photo/Charles Dharapak)

  • Mitt Romney, Barack Obama

    Republican presidential nominee Mitt Romney and President Barack Obama laugh after the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Charlie Neibergall)

  • President Barack Obama and Republican presidential nominee Mitt Romney participate in shakes hands with Ann Romney after the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Pool-Michael Reynolds)

  • Republican presidential nominee Mitt Romney and family talk to President Barack Obama and family after the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Pool, Rick Wilking)

  • Left, President Barack Obama hugs his wife Michelle with Republican presidential nominee Mitt Romney hugs his wife Ann following the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Eric Gay)

  • President Barack Obama hugs his wife Michelle following the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/David Goldman)

  • Mitt Romney, Barack Obama

    President Barack Obama and Republican presidential candidate and former Massachusetts Gov. Mitt Romney talk at the end of the first presidential debate in Denver, Wednesday, Oct. 3, 2012. (AP Photo/Charles Dharapak)

  • Mitt Romney

    Republican presidential nominee Mitt Romney answers a question during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Charlie Neibergall)

  • Barack Obama

    President Barack Obama gestures during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Charlie Neibergall)

  • Mitt Romney

    Republican presidential nominee Mitt Romney gestures during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Charlie Neibergall)

  • Mitt Romney

    Republican presidential nominee Mitt Romney smiles as President Barack Obama during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Charlie Neibergall)

  • President Barack Obama smiles at moderator Jim Lehrer during the first presidential debate with Republican presidential nominee Mitt Romney at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Eric Gay)

  • Republican presidential nominee Mitt Romney speaks during the first presidential debate with President Barack Obama at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Eric Gay)

  • President Barack Obama points to Republican presidential nominee Mitt Romney during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Eric Gay)

  • President Barack Obama answers a question of moderator Jim Lehrer during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Pool-Michael Reynolds)

  • Barack Obama

    President Barack Obama smiles as Republican presidential nominee Mitt Romney answers a question during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Charlie Neibergall)

  • President Barack Obama, right, listens to Republican presidential nominee Mitt Romney during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/David Goldman)

  • US-VOTE-2012-DEBATE

    US President Barack Obama (R) and republican Presidential candidate Mitt Romney (L) participate in the first presidential debate at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012, moderated by Jim Lehrer (C) of the PBS NewsHour. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney go head-to-head in their debut debate. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

  • US-VOTE-2012-DEBATE

    Republican presidential candidate Mitt Romney (L) speaks during the first presidential debate with US President Barack Obama October 3, 2012 at the University of Denver in Denver, Colorado. AFP PHOTO/Mandel NGAN (Photo credit should read MANDEL NGAN/AFP/GettyImages)

  • Mitt Romney, Barack Obama

    President Barack Obama and Republican presidential candidate and former Massachusetts Gov. Mitt Romney participate the first presidential debate in Denver, Wednesday, Oct. 3, 2012. (AP Photo/Charles Dharapak)

  • Republican presidential nominee Mitt Romney's shadow is reflected during the first presidential debate President Barack Obama withat the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/David Goldman)

  • President Barack Obama speaks during the first presidential debate with Republican presidential nominee Mitt Romney at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Eric Gay)

  • US-VOTE-2012-DEBATE

    US President Barack Obama listens during his debate with Republican presidential candidate Mitt Romney at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney go head-to-head in their debut debate. AFP PHOTO / Nicholas KAMM (Photo credit should read NICHOLAS KAMM/AFP/GettyImages)

  • US-VOTE-2012-DEBATE

    US President Barack Obama debates Republican presidential candidate Mitt Romney at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney go head-to-head in their debut debate. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

  • US-VOTE-2012-DEBATE

    Republican presidential candidate Mitt Romney speaks during his debate with US President Barack Obama at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney go head-to-head in their debut debate. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

  • US-VOTE-2012-DEBATE

    US President Barack Obama (R) and Republican presidential candidate Mitt Romney (L) participate in the first presidential debate at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012, moderated by Jim Lehrer (C) of the PBS NewsHour. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney go head-to-head in their debut debate. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

  • Barack Obama, Mitt Romney

    Republican presidential candidate, former Massachusetts Gov. Mitt Romney, left, and President Barack Obama, right, speak during their first debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Pablo Martinez Monsivais)

  • Mitt Romney, Barack Obama

    President Barack Obama answers a question as Republican presidential nominee Mitt Romney listens during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Charlie Neibergall)

  • President Barack Obama listens as Republican presidential nominee Mitt Romney answers a question during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Rick Wilking, Pool)

  • Obama And Romney Square Off In First Presidential Debate In Denver

    DENVER, CO - OCTOBER 03: U.S. President Barack Obama (L) listens as Republican presidential candidate and former Massachusetts Gov. Mitt Romney (R) speaks during the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Michael Reynolds-Pool/Getty Images)

  • Obama And Romney Square Off In First Presidential Debate In Denver

    DENVER, CO - OCTOBER 03: Democratic presidential candidate, U.S. President Barack Obama (R) speaks as Republican presidential candidate, former Massachusetts Gov. Mitt Romney listens during the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Doug Pensinger/Getty Images)

  • Obama And Romney Square Off In First Presidential Debate In Denver

    DENVER, CO - OCTOBER 03: Republican presidential candidate, former Massachusetts Gov. Mitt Romney (L) speaks as Democratic presidential candidate, U.S. President Barack Obama (R) listens during the Presidential Debate at the University of Denver on October 3, 2012 in Denver, Colorado. The first of four debates for the 2012 Election, three Presidential and one Vice Presidential, is moderated by PBS's Jim Lehrer and focuses on domestic issues: the economy, health care, and the role of government. (Photo by Doug Pensinger/Getty Images)

  • US-VOTE-2012-DEBATE

    US President Barack Obama listens during his debate with Republican Presidential candidate Mitt Romney at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney go head-to-head in their debut debate. AFP PHOTO / Nicholas KAMM (Photo credit should read NICHOLAS KAMM/AFP/GettyImages)

  • US-VOTE-2012-DEBATE

    The shadow of Republican Presidential candidate Mitt Romney is projected beneath a copy of The Declaration of Independence during the presidential debate with US President Barack Obama at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney go head-to-head in their debut debate. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

  • US-VOTE-2012-DEBATE

    Republican presidential candidate Mitt Romney participates in the first presidential debate with US President Barack Obama at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012, moderated by Jim Lehrer of the PBS NewsHour. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney go head-to-head in their debut debate. AFP PHOTO / Saul LOEB (Photo credit should read SAUL LOEB/AFP/GettyImages)

  • President Barack Obama answers a question during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Pool-Michael Reynolds)

  • Republican presidential nominee Mitt Romney speaks during the first presidential debate with President Barack Obama at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/David Goldman)

  • Republican presidential nominee Mitt Romney, left, listens to President Barack Obama during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Eric Gay)

  • President Barack Obama watches as Republican presidential nominee Mitt Romney answers a question during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Pool, Rick Wilking)

  • Republican presidential nominee Mitt Romney points to President Barack Obama during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/David Goldman)

  • US-VOTE-2012-DEBATE

    US President Barack Obama speaks during his debate with Republican Presidential candidate Mitt Romney at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney go head-to-head in their debut debate. AFP PHOTO / Nicholas KAMM (Photo credit should read NICHOLAS KAMM/AFP/GettyImages)

  • US-VOTE-2012-DEBATE

    US President Barack Obama speaks during his debate with Republican Presidential candidate Mitt Romney at Magness Arena at the University of Denver in Denver, Colorado, October 3, 2012. After hundreds of campaign stops, $500 million in mostly negative ads and countless tit-for-tat attacks, Obama and Romney go head-to-head in their debut debate. AFP PHOTO / Nicholas KAMM (Photo credit should read NICHOLAS KAMM/AFP/GettyImages)

  • Republican presidential nominee Mitt Romney answers a question during the first presidential debate at the University of Denver, Wednesday, Oct. 3, 2012, in Denver. (AP Photo/Pool-Michael Reynolds)