The New York Times reports: In his strongest denunciation of Donald J. Trump so far, President Obama on Tuesday said Mr. Trump was “unfit to serve as president” and urged the leaders of the Republican Party to withdraw their backing for his candidacy.

Mr. Obama said the Republican criticisms of Mr. Trump “ring hollow” if the party’s leaders continue to support his bid for the presidency this fall, particularly in light of Republican criticisms of Mr. Trump for his attacks on the Muslim parents of an American soldier, Humayun Khan, who died in Iraq.

“The question they have to ask themselves is: If you are repeatedly having to say in very strong terms that what he has said is unacceptable, why are you still endorsing him?” Mr. Obama said at a news conference at the White House. [Continue reading…]