Obama: Trump 'woefully unprepared' for the job
He added that he is unfit to be president and "keeps on proving it."
US President Barack Obama is challenging leading Republicans to repudiate Donald Trump, saying he is unfit to be president and "keeps on proving it."
Obama said on Tuesday that Trump's criticism of a fallen Muslim-American soldier's family is the latest evidence that the GOP presidential nominee is unfit to lead America. Obama is also citing Trump's misstatements on global crises, adding he is "woefully unprepared to do this job."
At the news conference with the prime minister of Singapore, Obama noted that many leading Republicans in Congress have denounced various Trump statements. But he asked why they are still endorsing him.
Obama said there has to be a point when people break with the party's standard-bearer. Otherwise, he said, the denunciations are hollow.