WASHINGTON -- President Barack Obama is challenging leading Republicans to repudiate Donald Trump.
Obama says Trump's criticism of a fallen Muslim-American soldier's family is the latest evidence that the GOP presidential nominee isn't ready to lead the country.
The president said Trump is unfit to be president and 'he keeps on proving it'
Obama is also citing Trump's misstatements on global crises.
At a news conference Tuesday, 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.