CHARLOTTE, N.C. — Democrats sought to push foreign policy, one of President Barack Obama's strengths, to the forefront of the White House campaign Sunday, casting Republican Mitt Romney as out of touch with the nation's international priorities and unprepared to manage them.
Vice President Joe Biden, campaigning in Pennsylvania, painted Romney as a warmonger who opposes ending the conflicts in Iraq and Afghanistan and is looking to start new military action in Iran and Syria. He made the claim without offering any proof.
"He said it was a mistake to end the war in Iraq and bring all of our warriors home. He said it was a mistake to set an end date for our warriors in Afghanistan and bring them home," Biden said. "He implies by the speech that he's ready to go to war in Syria and Iran. "
The campaign did not immediately respond to a request for details on Biden's claim.
It was a rare mention of foreign policy in a campaign that has been dominated by the economy. Polls show Obama leading Romney on who voters see as stronger on foreign policy issues, an uncommon advantage for Democrats on the issue.
Romney has said he would consider military action in Syria if the war-torn country's chemical weapons were at risk of falling into the wrong hands. Romney has also said the U.S. must keep all options on the table, including a military strike, when dealing with Iran.
Obama opposes military action in Syria, where activists says 20,000 people have been killed in 17 months of clashes between government forces and rebels. He also supports using diplomacy to resolve the stand-off over Iran's disputed nuclear program, though he too has said all options are on the table.
Romney raised eyebrows when he failed to mention the Afghan war during his prime-time speech at the Republican Party's national convention last week.
Romney senior adviser Eric Fehrnstrom on Sunday defended the omission during an interview on CNN's "State of the Union." Ferhnstrom said Romney had already addressed the issue the day before in a speech to the American Legion.
"But Gov. Romney's convention speech was an opportunity for him to introduce himself to millions of voters who were seeing him for the first time," he said. "In that speech, he accomplished what he set (out) to do, which is to talk about his better vision for America, with more jobs and increasing wages. He talked about the failures of the Obama presidency over the last four years."
Obama's campaign plans to play up that strength during the party's convention this week in Charlotte, N.C. Massachusetts Sen. John Kerry, a possible second-term secretary of state under Obama, will highlight the president's foreign policy record Thursday night before Obama formally accepts the Democratic nomination.
Obama himself trumpeted his foreign policy credentials Saturday during a rally in Des Moines, Iowa.
"I said we'd take out bin Laden and we did," said Obama, referencing the raid he ordered that led to the death of the al-Qaida leader.
Former New Mexico Gov. Bill Richardson, an Obama supporter, previewed some of Kerry's likely message on Sunday.
"The president has gotten us out of Iraq. We're getting out of Afghanistan," Richardson said on CBS' "Face the Nation." ''We've got free trade agreements in Latin America we have a president that brilliantly dealt with the situation in Libya, with the Arab spring."
Romney spent Sunday at his New Hampshire vacation home. He and his wife, Ann, attended church services Sunday morning at the chapel of the Church of Jesus Christ of Latter-Day Saints in Wolfeboro, N.H.
Campaign officials said Romney would spend much of the Democrats' convention week preparing for the presidential debates.
Obama was campaigning Sunday in Boulder, Colo., where he planned to hold a rally with college students.
Romney headlined rallies Saturday in Cincinnati and Jacksonville, Fla., where he channeled many voters' interest in the first weekend of the college football season.
"I don't like the way the way the game is going under this president," Romney said, pointing to the high jobless rate and approximately 23 million people who are unemployed or working part-time. "If there's a coach whose record is 0 and 23 million, you get rid of him and get someone new."
The former Massachusetts governor reiterated his pledge to create 12 million new jobs and make the U.S. energy independent in eight years but did not offer specifics on how he would achieve those goals.
Obama, campaigning Saturday in Iowa, seized on the dearth of policy details outlined by Romney and other Republicans at their convention in Tampa, Fla.
"There was a lot of talk about hard truths and bold choices, but no one actually told you what they were," Obama said in Urbandale, Iowa, warning a Romney administration would offer "retreads of the same old policies that have been sticking it to the middle class for years."
David Axelrod, Obama's senior campaign adviser, said the president would present a clear agenda for strengthening middle class economic security during his acceptance speech in Charlotte.
"You don't hear those kinds of things from the Republican Party," Axelrod said on Fox News Sunday. "Their platform was locked up in the same vault as Mitt Romney's tax returns. They simply don't want to talk about their ideas, because their ideas are not ideas about the future."
Viewership was down markedly for the GOP convention this year. According to The Nielsen Co., some 30 million viewers tuned in Thursday night when Romney gave his acceptance speech, compared to some 40 million who watched Arizona Sen. John McCain accept the Republican nomination in 2008.
Democrats were eager to recapture the spotlight at their own gathering. But the convention's location served as an unwelcome reminder to the Democrats of an economy so weak that it threatens Obama's chances for re-election.
The president carried North Carolina in 2008, but the state's unemployment rate is pegged at 9.6 percent, higher than the nation's 8.3 percent and tied with next-door South Carolina for fifth from the bottom.
The Democrats' convention at the Time Warner Cable arena will feature evening speeches Tuesday by first lady Michelle Obama and San Antonio Mayor Julian Castro, the keynote speaker.
The president will be nominated for a new term on Wednesday, when former President Bill Clinton also will speak.
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Obama's prime-time acceptance speech, to be delivered at the outdoor Bank of America Stadium, caps the convention on Thursday night. Aides predict a capacity crowd will hear the speech at the site, which can hold nearly 74,000. Vice President Joe Biden delivers his own acceptance speech the same evening.
Democrats are taking their turn in the convention spotlight just days after the Republicans met in Tampa to nominate Romney for the White House and Wisconsin Rep. Paul Ryan to be vice president.
Associated Press writers Beth Fouhy in Charlotte, N.C. and Kasie Hunt in Wolfeboro, N.H. contributed to this report.