In his latest campaign video, Sen. Barack ObamaBarack Hussein ObamaThe true commander in tweet Meghan Markle's pre-royal 'finishing lessons' and an etiquette of equality Hannity on Acosta claim he was tough on Obama: 'Only thing missing were the pom-poms' MORE (D-Ill.) said he wasn't deterred by the president's latest veto on Congress' demand to start withdrawing U.S. forces from Iraq.

"If the president continues to stubbornly ignore the realities in Iraq, we intend to force our colleagues in the Senate and House to take vote, after vote, after vote, after vote, after vote until we finally overcome his veto or he understands he has to change course," Obama said.