Trump is 'unfit,' Obama says, challenging GOP to end support JULIE PACE, AP White House CorrespondentWASHINGTON (AP) — In a searing denouncement, President Barack Obama castigated Donald Trump as "unfit" and "woefully unprepared" to serve in the White House. He challenged Republicans to withdraw their support for their party's nominee, declaring "There has to come a point at which you say enough."While Obama has long been critical of Trump, his [...]