Donald J. Trump and Ted Cruz sharply attacked each other at the Republican candidates’ debate Thursday night, with Mr. Trump questioning the Canadian-born Mr. Cruz’s eligibility to be president and the Texas senator denouncing Mr. Trump’s “New York values.”
But Mr. Trump’s popularity has climbed to its highest level yet, according to a national NBC/Wall Street Journal poll released on Thursday.
21:01 Iran deal faces uncertain future under Trump25
14:44 Trump says he wants victories — but he isn’t selling the GOP agenda to voters29
13:23 The Energy 202: Trump gets one thing right when it comes to energy and Russia36
11:16 The Daily 202: Trump’s children become bigger liabilities for the White House, complicate damage-control efforts65