INDIANAPOLIS — Donald Trump’s last Republican foe, Ohio Gov. John Kasich, was ending his quixotic presidential campaign Wednesday, cementing Trump’s remarkable triumph as his party’s presumptive nominee and launching him to a likely fall battle with Democrat Hillary Clinton. Trump’s victory spurred some reluctant Republicans to rally around him, though others agonized over their party’s future.
Trump vowed to unite the splintered GOP, even as he was bitingly dismissive of members who have been critical of his campaign.