CLEVELAND (AP) —Donald Trump is signaling that he might run as an independent if he doesn't get the Republican nomination.

At last night's Republican presidential debate in Cleveland, Trump said he couldn't rule out a third-party run and couldn't promise that he'd back the Republican president nominee if were anyone but him.

The debate in Cleveland also featured a sharp exchange between New Jersey Gov. Christ Christie and Kentucky Sen. Rand Paul over government surveillance and individual privacy issues.

On stage in his home state, Ohio Gov. John Kasich said that while he favors traditional marriage, he recently attended a same-sex wedding and would support his children if they were gay.

There were no memorable gaffes during the 2-hour session.

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