By MICHAEL WILNERUpdated: AUGUST 2, 2016 18:54
At a White House news conference, US President Barack Obama declared Republican nominee Donald Trump "unfit to serve as president... and he keeps on proving it."Addressing Republican officials, Obama added, "If you are repeatedly having to say, in very strong terms, that what [Trump] has said is unacceptable– why are you still endorsing him?"He went on to say, "This is different than just having policy disagreements. There has to come a point at which you say, 'enough.'"
Four airstrikes target Saada, Yemen - report
