MoveOn.org is seeking donations for a new advertisement in which it criticizes John McCainJohn Sidney McCainConservative activist wins contest to represent New Hampshire at Republican National Convention Schiff shows clip of McCain in Trump impeachment trial Martha McSally fundraises off 'liberal hack' remark to CNN reporter MORE for not supporting a timetable for the withdrawal of U.S. troops from Iraq.

"John McCain doesn't want a timetable," a narrator says in the ad. "He'll spend hundreds of billions of dollars more to keep our troops in Iraq for years and years."

The narrator adds that Americans and Iraqis, including Iraqi Prime Minister Nouri al-Maliki, have expressed support for a withdrawal schedule.

The Republican National Committee responded to the advertisement by saying that the liberal group and its presidential candidate, Barack ObamaBarack Hussein ObamaSouth Carolina woman behind popular Obama slogan says she backs Steyer Sanders surges while Warren wanes Buttigieg: America 'united in mourning' Kobe Bryant's death MORE, have been wrong to oppose the U.S. military surge.

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