Presidential nominee Donald Trump's days of dividing the Republican Party are not over.

Far from consolidating his support since becoming the party's nominee, he's doing his damnedest to drive sentient Republicans from his column. His refusal Tuesday to endorse the re-election bids of House Speaker Paul Ryan of Wisconsin and Arizona Sen. John McCain (whom Trump already slammed for being a prisoner of war in Vietnam) makes this abundantly clear. Not to mention ejecting a crying baby from his rally earlier that day.

President Barack Obama clearly counted on this GOP buyers' remorse when he suggested at his Tuesday news conference that the Republicans un-nominate Trump.