WASHINGTON (CNN) -- Republicans came out swinging Friday against New York Sen. Hillary Clinton and Illinois Sen. Barack Obama for voting against the Iraq war funding bill.

The Republican National Committee called their vote a "shameful switch" and said they changed their positions "to pander to MoveOn.org's wishes."

The RNC wasn't alone in accusing them of voting against the bill to appease the liberal advocacy group.

"I was very disappointed to see Senator Obama and Senator Clinton embrace the policy of surrender by voting against funds to support our brave men and women fighting in Iraq and Afghanistan," Arizona Sen. John McCain said in a statement. "This vote may win favor with MoveOn and liberal primary voters, but it's the equivalent of waving a white flag to al Qaeda."

Former Massachusetts Gov. Mitt Romney also criticized the two Democratic presidential candidates, saying in a statement, "Their votes render them undependable in the eyes of the men and women of the United States military and the American people."

"At a time when the men and women of our military fighting terrorism around the globe needed them most, Senators Hillary Clinton and Barack Obama cast a vote that singularly defines their lack of leadership and serves as a glaring example of an unrealistic and inexperienced worldview on national security that is regrettably shared by too many of their fellow Capitol Hill Democrats," Romney said in a statement. "Voting against our troops during a time of war shows the American people that the leaders of the Democrat Party will abandon principle in favor of political positioning."

-- CNN Associate Producer Lauren Kornreich