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Mark Blumenthal
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Mark Blumenthal is the senior polling editor of the Huffington Post and the founding editor of

The Huffington Post acquired in July 2010, but HuffPost Pollster’s mission remains the same: To publish and aggregate poll results in uniquely interactive charts and to provide daily running commentary and analysis that explains, demystifies and critiques political polling.

From 2006 to 2010, attracted over 28 millions visits and over 90 million page views. Time named one of the 50 Best Websites for 2009, a list that also included Google, YouTube, Facebook and Twitter. was partly an outgrowth of Blumenthal's Mystery Pollster blog, which he started in September 2004.

In May of 2007, along with co-creator Charles Franklin, Blumenthal received the Warren J. Mitofsky Innovators Award for from the American Association for Public Opinion Research. In 2005, the National Council on Public Polls awarded Blumenthal and the MysteryPollster blog a special citation for its work explaining polls to the Internet reader.

From 2008 to 2010, Blumenthal served as polling analyst for The National Journal, were he wrote a weekly column for

Blumenthal worked in the political polling business for more than 20 years, conducting and analyzing political polls and focus groups for Democratic candidates and market research surveys for major corporations. His experience includes work with pollsters Harrison Hickman, Paul Maslin, Kirk Brown, Celinda Lake, Stan Greenberg and 15 years with his former partners David Petts and Anna Bennett in the firm formerly known as Bennett, Petts and Blumenthal (BPB). In January of 2007, he left BPB to devote full time to

His academic background includes a Political Science degree from the University of Michigan and course work towards a Masters degree at the Joint Program in Survey Methodology (JPSM) at the University of Maryland. He has also served as a guest lecturer at the Communications School at American University and at training seminars sponsored by EMILY's List, the Democratic National Committee and the National Democratic Institute for International Affairs. He served as Communications Chair of the American Association for Public Opinion Research (AAPOR) from 2007 to 2008.

Entries by Mark Blumenthal

HUFFPOLLSTER: This Year's Gubernatorial Races Get Even More Competitive

(0) Comments | Posted October 22, 2014 | 8:10 AM

Many of this year's gubernatorial races remain exceptionally close. Most Americans think the GOP will win the Senate. And do early voting numbers really spell doom for Democrats? This is HuffPollster for Wednesday, October 22, 2014.

'GUBERNATORIAL CONTESTS GET CLOSER - While national attention has focused on the battle for...

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HUFFPOLLSTER: Latest Kansas Senate Survey Shows A Tie

(14) Comments | Posted October 21, 2014 | 8:35 AM

A new poll finds a tie in the Kansas Senate race. Americans' media habits are polarized, but few live in ideological bubbles. And while pollsters won't cop to 'herding,' most suspect that others do. This is HuffPollster for Tuesday, October 21, 2014.


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HUFFPOLLSTER: Democrats' Internal Polls Challenge Colorado Conventional Wisdom

(11) Comments | Posted October 20, 2014 | 8:46 AM

Democrats produce two polls showing their candidate with an edge in the Colorado Senate race. Nearly 2 million Americans have already voted nationwide. And the more you dislike the opposition, the likelier you are to turn out on Election Day. This is HuffPollster for Monday, October 20, 2014.


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HUFFPOLLSTER: Senate Survey Trends Are Good News For The GOP

(83) Comments | Posted October 17, 2014 | 9:04 AM

Republicans have made modest but important gains in a handful of key swing states. A majority of Americans support recent judicial decisions in favor of gay marriage. And Latinos' demographic growth outpaces their electoral presence. This is HuffPollster for Friday, October 17, 2014.


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HUFFPOLLSTER: What Does It Mean If This Year's Polls Are Wrong?

(14) Comments | Posted October 16, 2014 | 9:17 AM

We take a closer look at the likelihood that this year's polling could be wrong. Prominent modelers offer advice on how to interpret their work. And most voters think things are 'going to hell in a handbasket.' This is HuffPollster for Thursday, October 16, 2014.


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HUFFPOLLSTER: Have Polls Been Understating Dems' Chances In Georgia?

(34) Comments | Posted October 15, 2014 | 9:22 AM

Democrats get some good news from two new polls from Georgia, but surveys elsewhere continue to show a GOP advantage in the battle for the Senate. Two national polls show likely voters tipping to Republicans in U.S. House races. And Stephen Colbert finds a reason to love HuffPollster's charts. This...

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HUFFPOLLSTER: How Much Does A 62 Percent Win Chance Mean For The GOP?

(17) Comments | Posted October 14, 2014 | 8:43 AM

Our Senate forecast tips toward the GOP, but history polling averages can still miss in close races. Surveys find little love for President Obama in some key swing states. And there's now official data to prove pumpkin pastries are delicious. This is HuffPollster for Tuesday, October 14, 2014.


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HUFFPOLLSTER: Is Bruce Braley Rebounding In Iowa?

(23) Comments | Posted October 13, 2014 | 8:24 AM

A new survey confirms a very close contest in Iowa. Polls point to a narrow Republican advantage in the battle for the Senate -- and a slim majority of Americans expect them to win. And early voting suggests higher than usual turnout in key battleground states. This is HuffPollster for...

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HUFFPOLLSTER: Florida Polls Show Small Gain For Charlie Crist

(49) Comments | Posted October 10, 2014 | 8:04 AM

Florida polling shows a small shift toward the Democrat. Most midterm voters have already made up their minds. And Dana Milbank is more certain than he should be about the problems with election forecasts. This is HuffPollster for Friday, October 10, 2014.


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HUFFPOLLSTER: Two New Surveys Take On The Last Frontier

(1) Comments | Posted October 9, 2014 | 9:14 AM

Republicans get good polling news in Alaska and the other Senate battlegrounds. Pat Roberts sees some better numbers in Kansas. And even by midterm standards, 2014 turnout may be "meh." This is HuffPollster for Thursday, October 9, 2014.

REPUBLICAN LEADS IN ALASKA - Until Wednesday, the roughly two dozen previous...

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HUFFPOLLSTER: Don't Count On This Year's Elections Ending In November

(3) Comments | Posted October 8, 2014 | 9:05 AM

Five states offer reasons not to stay up late on November 4. Gubernatorial races in Connecticut and Massachusetts continue to look like nailbiters. And Americans are increasingly concerned about Ebola, but most still don't think they're personally at risk. This is HuffPollster for Wednesday, October 8, 2014.

Politicos expecting to...

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HUFFPOLLSTER: Democratic Campaigns Are Reaching More Voters, Survey Finds

(20) Comments | Posted October 7, 2014 | 8:50 AM

Democratic campaigns are reaching more voters with ads and volunteers. Outlier results pop up in Kentucky and Iowa. And Stan Greenberg (D) sees a 'tipping point' in the Senate battlegrounds. This is HuffPollster for Tuesday, October 7, 2014.


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HUFFPOLLSTER: Reviewing A Busy Weekend For Polls

(2) Comments | Posted October 6, 2014 | 7:58 AM

It was a busy weekend for polls, with new data showing a still close race for control of the Senate with a slight edge for the Republicans. Surveys show Kansas leaning toward an independent. And both sides may find encouraging news in the early voting statistics in Iowa. This is...

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HUFFPOLLSTER: Midterm Polls Finds GOP Edge, But It's 'Anybody's Game'

(2) Comments | Posted October 3, 2014 | 9:00 AM

As Election Day nears, new surveys find a closely-fought political environment but an edge for the GOP. Two campaign pollsters talk turnout. And the polling industry could be more transparent about its weighting and sampling methods. This is HuffPollster for Friday, October 3, 2014.


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How Much Can We Trust The Polls? A Look At The Industry's Transparency Problem

(21) Comments | Posted October 3, 2014 | 7:38 AM

The T-shirt said it all. "The weighting is the hardest part."

The pun seen all around the 2014 conference of the American Association for Public Opinion Research (AAPOR) aimed to elicit chuckles, but it also inadvertently conveyed a critical message about modern polling. Between fewer landline phones and falling...

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HUFFPOLLSTER: What Happens If Orman Wins Kansas?

(72) Comments | Posted October 2, 2014 | 9:18 AM

A new survey show the independent candidate leading in Kansas. A Democratic pollster defends outlier results favoring his client in Kentucky. And the AP poll says it's still the economy, stupid. This is HuffPollster for Thursday, October 2, 2014.

ORMAN LEADS IN KANSAS - HuffPollster: "A Wednesday poll conducted by...

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HUFFPOLLSTER: Rising Approval For Obama's Handling Of ISIS

(108) Comments | Posted October 1, 2014 | 8:32 AM

One new survey suggests rising support for Obama's handling of Islamic State militants. Another finds a slight uptick for Democrats nationwide, but maybe not one that will help in November. And a third finds Charlie Crist up in Florida -- for now. This is HuffPollster for Wednesday, October 1, 2014.

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HUFFPOLLSTER: Massachusetts Race Turns Competitive

(33) Comments | Posted September 30, 2014 | 8:30 AM

Martha Coakley sees her initial lead slip away in a Massachusetts race...again. Surveys disagree on candidates' popularity in North Carolina and elsewhere. And few people feel personally affected by the campaign against ISIS. This is HuffPollster for Tuesday, September 30, 2014.


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HUFFPOLLSTER: Is Joni Ernst Gaining In Iowa?

(82) Comments | Posted September 29, 2014 | 8:37 AM

New state surveys continue to point to a midterm edge for the GOP. The stats on early voting have some good news for the Democrats. And Clippy may soon be asking if you need some help conducting your polls. This is HuffPollster for Monday, September 29, 2014.


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HUFFPOLLSTER: Republican Gains Ground In Colorado

(12) Comments | Posted September 26, 2014 | 8:59 AM

New Senate polls show movement to the Republican in Colorado. Nate Silver releases his latest Pollster ratings. And the Ace of Spades HQ aims to change election night vote count reporting. This is HuffPollster for Friday, September 26, 2014.

GOP GAINING IN COLORADO - A new poll from the Democratic...

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