Republican Presidential Nominee Donald Trump responded to President Barack Obama's criticism of him Tuesday.
A Fox News report stated that Trump listed flaws in Obama's and Hillary Clinton's conduct while in office. He critcized Obama's foreign policy efforts, saying:
"I think he's been a disaster. He's been weak, he's been ineffective," Trump said on Fox News' "The O'Reilly Factor." "I believe I know far more about foreign policy than he knows. Look at Ukraine. He talks about Ukraine [and] how tough he is with Russia, in the meantime they took over Crimea."
Trump also described Obama as the "worst president" on Twitter.
President Obama will go down as perhaps the worst president in the history of the United States!
— Donald J. Trump (@realDonaldTrump) August 2, 2016
The businessman held Obama and Clinton responsible for the conflict in the Middle East, a problem during the President's tenure which still persists. Obama has continued to launch airstrikes despite civilian casualties and a lack of progress in the conflict.
Obama attacked Trump and called for Republicans to disavow him Tuesday:
"If you are repeatedly having to say, in very strong terms, that what he has said is unacceptable, why are you still endorsing him?" Obama asked during a White House news conference. "What does this say about your party that this is your standard-bearer?"
Several prominent Republicans have refused to endorse Trump, and some have voiced support for Hillary Clinton. The RealClearPolitics poll average shows Trump losing by 4.5 points.