WASHINGTON — President Barack Obama will fly to Colorado on Sunday to visit with the families of victims from the Aurora movie theater shooting, the White House announced, as he and Mitt Romney dialed back their campaigning in the shocked aftermath of the massacre.

White House communications director Dan Pfeiffer disclosed plans for the visit Saturday night. Aides said Obama's stop would also include meetings with state and local officials.

Friday's deadly rampage briefly silenced the acrimonious presidential contest, with both campaigns cutting short schedules and pulling advertising in Colorado out of respect for the dead and injured.

But for Obama, the pause was to be short-lived. After his Colorado visit, he was to fly Reno, Nev., for a Monday speech to the Veterans of Foreign Wars, followed by a series of campaign fundraisers in California, Oregon and Washington state. Romney is also expected to speak to the Veterans of Foreign Wars on Tuesday.

Obama said Saturday in his weekly radio and Internet address that he hopes everyone takes time this weekend "for prayer and reflection – for the victims of this terrible tragedy, for the people who knew them and loved them, for those who are still struggling to recover."

The president said Americans should also think about "all the victims of the less publicized acts of violence that plague our communities on a daily basis. Let us keep all these Americans in our prayers."

The White House said Obama received updates Saturday from John Brennan, his homeland security adviser, on the investigation into the shooting and the attempts by authorities to gain access to the suspect's apparently booby-trapped apartment.

Obama and Romney used campaign appearances on Friday to focus attention on the need for national unity in the aftermath of the shooting in Aurora, which killed 12 people and wounded dozens of others. Their campaign teams rescheduled Sunday show appearances by top aides and surrogates, essentially providing a break in what has been an increasingly testy campaign.

The rampage injected a new tone into the campaign after Obama and Romney had clashed repeatedly over the economy, Medicare and tax returns.

Obama was set to start his second day of events in Florida when the shooting occurred, prompting his team to address the violence at a previously scheduled rally in Fort Myers, Fla., and scrapping an event in suburban Orlando. Obama told supporters in Fort Myers that the shooting served as a "reminder that life is very fragile."

"Our time here is limited and it is precious. And what matters at the end of the day is not the small things, it's not the trivial things," he said. "Ultimately, it's how we choose to treat one another and how we love one another."

Romney echoed Obama's call for unity, saying at a previously scheduled event in Bow, N.H., that he joined with the president and first lady in offering condolences for those "whose lives were shattered in a few moments, a few moments of evil in Colorado."

"The answer is that we can come together. We will show our fellow citizens the good heart of the America we know and love," Romney said.

Other prominent lawmakers called the shooting a time for unity. House Speaker John Boehner, R-Ohio, said in the Republican address Saturday that lawmakers joined Obama in offering condolences and prayers to the loved ones of those who were killed and wounded.

"I know that when confronted with evil we cannot comprehend, Americans pull together and embrace our national family more tightly," Boehner said.

Yet, beyond the calls for a higher purpose, the shooting could raise the profile of gun rights in the presidential campaign, an issue which has played a minor role so far.

As a senator Obama voted to leave gun makers and dealers open to civil lawsuits, and as an Illinois state lawmaker he supported a ban on all forms of semiautomatic weapons and tighter state restrictions generally on firearms.

Following the killing of six people and wounding of then-Rep. Gabrielle Giffords in Tucson, Ariz., in 2011, Obama called for a series of steps to "keep those irresponsible, law-breaking few from getting their hands on a gun in the first place."

Among those steps was a better federal background check system. The administration said Friday that it has indeed improved the amount and quality of information poured into that system, allowing background checks to be more thorough.

But the administration has offered no detailed, public explanation of how it is following up on all of Obama's previous promises, and it had no comment about any need for new legislation.

"The president believes that we need to take common-sense measures that protect Second Amendment rights of Americans, while ensuring that those who should not have guns under existing law do not get them," said White House press secretary Jay Carney.

Romney backed some gun control measures when he was governor of Massachusetts. When he challenged Sen. Edward M. Kennedy in 1994 he declared, "I don't line up with the NRA." In April, Romney told the National Rifle Association he was a guardian of the Second Amendment.

Romney spokeswoman Andrea Saul said the Republican candidate believes that the "best way to prevent gun violence is to vigorously enforce our laws."

New York Mayor Michael Bloomberg, in a radio interview, urged the president and his challenger to address gun violence forcefully.

"You know, soothing words are nice," Bloomberg said, "but maybe it's time that the two people who want to be president of the United States stand up and tell us what they are going to do about it, because this is obviously a problem across the country."

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Associated Press writer Mark S. Smith contributed to this report.

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Obama's address: http://www.whitehouse.gov

Boehner's address: http://www.youtube.com/JohnBoehner

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  • Barack Obama

    "Michelle and I are shocked and saddened by the horrific and tragic shooting in Colorado," President Obama said in a statement. "Federal and local law enforcement are still responding, and my Administration will do everything that we can to support the people of Aurora in this extraordinarily difficult time. We are committed to bringing whoever was responsible to justice, ensuring the safety of our people, and caring for those who have been wounded. As we do when confronted by moments of darkness and challenge, we must now come together as one American family. All of us must have the people of Aurora in our thoughts and prayers as they confront the loss of family, friends, and neighbors, and we must stand together with them in the challenging hours and days to come."

  • Mitt Romney

    "Ann and I are deeply saddened by the news of the senseless violence that took the lives of 15 people in Colorado and injured dozens more," Mitt Romney said in a statement. "We are praying for the families and loved ones of the victims during this time of deep shock and immense grief. We expect that the person responsible for this terrible crime will be quickly brought to justice."

  • Michael Bloomberg

  • Sen. Robert Menendez

  • Louie Gohmert

  • Scott P. Brown

  • Jay Rockefeller

  • Reince Priebus

  • Jim Himes

  • Charles Rangel

  • Kevin McCarthy

  • Nancy Pelosi

  • Ed Perlmutter

  • Mark Udall

  • Speaker John Boehner

  • David Vitter

  • John McCain

  • Sherrod Brown

  • Allen West

  • Senator John Thune

  • Kelly Ayotte

  • Michael Bennet

    "This was horrible, senseless and abhorrent act," Sen. Michael Bennet (D-Co.) said in a statement. "My family and I are shocked and deeply saddened this morning and our hearts are with the victims and their families. My staff and I are in contact with and offering our support to law enforcement and medical officials as they respond to the shooting."

  • "This is not only an act of extreme violence, it is also an act of depravity," Colorado Gov. John Hickenlooper (D) said.

  • Mike Huckabee

    "Heartfelt prayers for the victims in Aurora, Colorado and all those impacted by this terrible tragedy," Mike Huckabee said in a statement on his Facebook page.

  • Rob Portman

  • JohnCornyn

  • Tim Kaine

    "I am heartbroken and shocked by the horrific act of violence in Colorado," Tim Kaine said in a statement. "The thoughts of Anne and I are with the families who have lost loved ones in this senseless tragedy. We continue to pray for the recovery of those who have been wounded, and we offer our support to Governor Hickenlooper and the entire community of Aurora as they heal."

  • Mike Coffman

  • Nikki Haley

    ‎"Michael Haley and I have the victims and their families of the Colorado massacre in our thoughts," South Carolina Gov. Nikki Haley (R) said in a statement on Facebook. "Please join us in prayer for all those effected by this horrible senseless tragedy."

  • "I join in mourning the tragic loss of life in Colorado this morning. The families of the victims, the many injured, and all those in Aurora are in my thoughts and in my prayers," House Democratic Whip Steny Hoyer said in a statement Friday. "It is in times like these that Americans have always rallied together as one community and one family, and we do so again today. I commend the heroism of our first responders from local and federal law enforcement and area hospitals, who have done an outstanding job in the face of great difficulty. "As the people of Aurora find themselves facing their darkest hour, I hope they find comfort knowing that the memories of the lost will never fade, their community will remain strong, and that the nation stands united alongside them as their process of healing begins."

  • Mitch McConnell

    "Elaine and I are heartbroken by the shootings in Aurora," Senate Minority Leader Mitch McConnell said Friday in a statement. "This senseless massacre of so many innocent people gathered with friends and family in a movie theater reminds us not only of the great evil that exists in the hearts of some, but of the great and precious gift of life. I join all Americans today in prayer for the victims, their families and friends, and the wider Aurora community, and in heartfelt thanks to all the first responders who quickly responded at great risk to themselves. It is in moments like this that Americans have always drawn closer together and shown their great compassion and generosity to those touched by tragedy and loss. We hope that in the midst of the horror in Aurora, these qualities shine through once again and reach those who are suffering most. America is at prayer today for all who are affected by this tragedy."

  • MicheleBachmann

  • Chuck Schumer

  • Rep. Diana DeGette

  • Harry Reid

    "The shooting in the Aurora movie theater is a national tragedy, and the victims of this cruel and violent act are in my thoughts," Senate Majority Leader Harry Reid said in a statement Friday. "Innocent people suffered a heartbreaking loss, but the victims and their families are not alone. Today, Americans take time to reflect on the value of life and the things that are most important to us, and mourn for those who lost what is most important to them. Everyone affected by this violent act will be in our hearts today, and for a long time to come."

  • Carolyn McCarthy

    "The horrific nightmare of a mass shooting on innocent civilians in a crowded public place has, sadly, come true once again," said Rep. Carolyn McCarthy (D-N.Y.), whose family was affected by a mass shooting on the Long Island Railroad before she was elected to Congress, in a statement Friday. "I mourn alongside the people of Aurora for the many killed and injured and the countless family and friends whose lives, as a result of the consequences of this event, will be negatively affected for decades to come. The shooter should be brought to justice and prosecuted to the fullest extent of the law. But we as a nation should also not continue to ignore avenues to prevent tragedies like this from happening in the future."

  • Senator Dick Durbin

  • Condoleezza Rice

  • Jeff Flake

  • "This is a terrible tragedy for the families of the victims, the city of Aurora and our entire nation," Democratic candidate for U.S. Senate in Massachusetts Elizabeth Warren said in a statement Friday. "This senseless violence has no place in our society. As a mother and grandmother, I am truly saddened that so many of the victims were so young. Bruce and I send our thoughts and prayers to the victims and their loved ones."

  • Gary Johnson

    "The shooting in Aurora is a senseless tragedy and a despicable act," said Libertarian Party presidential candidate and former New Mexico Gov. Gary Johnson in a statement Friday. "Our thoughts go out to the victims, their families, and to the entire community as they deal with the shock and grief today brings. "

  • Joe Biden

    "Jill and I were shocked to learn of the tragedy in Aurora, Colorado this morning," Vice President Joe Biden said in a statement Friday. "The reason this is so deeply felt by all Americans is that, but for the grace of God, the victims could have been any one of our children, in any one of our towns. It is every parent's worst nightmare to receive 'that phone call' and to sit by their child's bedside, praying. We know what it's like to wait and wonder and the helplessness a parent feels at this moment. Our hearts go out to each and every person who is suffering right now as a result of this terrible event. The prayers of an entire nation are with the victims and their families. We stand with the city of Aurora and the state of Colorado in mourning."

  • Newt Gingrich

  • Steve Israel

  • Mark Kelly

  • Gov. Buddy Roemer

  • Claire McCaskill

  • John Lewis

  • Rick Santorum

  • Sarah Palin

    "Todd's and my thoughts and prayers go out to the victims of the terrible tragedy in Colorado," Sarah Palin said Friday in a statement on Facebook. "Our family joins others in praying for everyone affected by the evil that inexplicably took innocent lives. We wish to remind all to hold loved ones tight."

  • ChuckGrassley