Poll: Trump hits new high with 56 percent nationally
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Republican presidential candidate Donald Trump has hit a new polling high, claiming 56 percent support among Republicans and GOP-leaning voters in a new NBC News/Survey Monkey poll released Tuesday.

Ted CruzRafael (Ted) Edward CruzGrassley agrees to second Kavanaugh hearing after GOP members revolt FEC: Cruz campaign didn't violate rules with fundraising letter labeled ‘summons’ Cruz criticizes O'Rourke on Dallas shooting: Wish he wasn't 'so quick to always blame the police officer' MORE and John Kasich followed with 22 percent and 14 percent, respectively.

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Trump rose 6 points from last month’s edition of the same poll, while Cruz dropped 4 points and Kasich dropped 3.

A plurality of Republicans surveyed, 39 percent, said Cruz should stay in the GOP race through the party's convention in July. Slightly fewer, 36 percent, said he should drop out now, while 23 percent said he should drop out next month if he's running behind at the end of the primary season.

Meanwhile, 58 percent said Kasich should drop out now, while another 26 percent said he should stay in the race until Cleveland and 15 percent said drop out next month.

The survey of 3,479 GOP registered voters took place April 25–May 1. It has a margin of error of 2.2 points.

This story was updated at 10:36 a.m.