president obama let loose donald trump describe republican presidential nominee simply unfit serve president unite states.in press conference white house alongside prime minister singapore obama ask trump attack family decease army captain humayun khan `` republican nominee unfit serve president `` president obama say https //t.co/wjcjjovbm5 https //t.co/fb5yn5gmpq situation room cnnsitroom august 2016president obama say republican nominee unfit serve president say last week keep prove notion would attack gold star family make extraordinary sacrifice behalf country fact appear basic knowledge around critical issue europe middle east asia mean woefully unprepared job obama comment come trump pile one screw-up top another attack khan family erroneously state russia never invade crimea go local fire marshal call hillary clinton devil tuesday morning trump even make light purple heart winners supporter give replica trump laugh easy get one incident occur new york time report examine trump claim avoid serve vietnam war find make multiple contradictory excuse years stay conflict.his campaign also trouble trump recently fire two senior staffers include man put together b-list celebrities appear republican convention.by contrast hillary clinton see uptick poll convention cnn record big post-convention bounce poll since 2000 new cnn/orc poll show ahead 52 43 nbc find similar result late nbc/surveymonkey poll show clinton ahead 50 42 .featured image via twitter watch obama drag trump epic fashion world stage