Rove: Trump Does Not Have 'Lock' on Nomination

Front-running GOP presidential candidate Donald Trump doesn't yet have a "lock" on the nomination, but time is running out for another candidate to defeat him, according to political strategist Karl Rove.

In a commentary for The Wall Street Journal, the former senior adviser and deputy chief of staff during the George W. Bush administration argues the GOP nomination — "as long as three or more candidates are splitting delegates" in pro