Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) -- Although it has been over for nearly a year now, the war in Iraq continued to be a flash point in Monday night's debate between President Barack Obama and his Republican challenger, former Massachusetts Gov. Mitt Romney. "You say that you're not interested in duplicating what happened in Iraq," said Obama, a Democrat who opposed the U.S.-led invasion in 2003. "But just a few weeks ago, you said you think we should have more troops in Iraq right now. ... You said that we should still have troops in Iraq to this day." But Romney, who supported the invasion, said Obama wanted to keep U.S. troops there longer -- he just couldn't get the Iraqis to go along.Obama opposed the war in Iraq and touted its endHis administration sought to extend a U.S. training mission there, howeverRomney has criticized the failure of that effort and said troops should have stayed 
 Question:_ touted that as a promise kept, saying Americans would be leaving "with their heads held high."

Barack Obama