Personal attacks escalate as Trump clashes with rivals

Donald Trump unleashed fiery, off-color rhetoric at Thursday's Republican debate after enduring a day of intense criticism by party leaders, as conservatives agonize over embracing his divisive candidacy or derailing his march to the nomination.

But despite the escalated attacks against Trump by his rivals on the debate stage, each one of them - Senators Ted Cruz and Marco Rubio and Ohio Governor John Kasich - acknowledged they would support the party's eventual nominee.

With the real estate tycoon apparently on a glide path to becoming the Republican standard-bearer, some panic has set in at the prospect of Trump winning the nomination.