Pollster says Trump unlikely to face 'significant' primary challenge

Pollster Mike Greenfield told Hill.TV on Wednesday that it is unlikely President TrumpDonald John TrumpMost Americans break with Trump on Ukraine, but just 45 percent think he should be removed: poll Judge orders Democrats to give notice if they request Trump's NY tax returns Trump's doctor issues letter addressing 'speculation' about visit to Walter Reed MORE will face a significant Republican primary challenger in 2020.

"I think it's very unlikely that anybody is going to challenge Trump in a significant way," Greenfield told host Jamal Simmons on "What America's Thinking."

Greenfield referred to a Change Research poll conducted in February, which found most hypothetical Republican challengers trailing the president in early primary state South Carolina. 

"Most of the candidates are well under 10 percent against Trump," he said. "Even Nikki HaleyNimrata (Nikki) HaleyConway and Haley get into heated feud: 'You'll say anything to get the vice-presidential nomination' The Hill's 12:30 Report: Former Ukraine envoy offers dramatic testimony Nikki Haley: 'We should always protect whistleblowers' MORE, who's from South Carolina — really has everything going for her — polls in the low 20s against Trump."

Haley, the former U.S. ambassador to the United Nations, came in far ahead of the other Republicans polled, getting 21 percent of the vote in a hypothetical match-up with Trump. 

The poll showed former Sens. Bob CorkerRobert (Bob) Phillips CorkerRNC says ex-Trump ambassador nominee's efforts 'to link future contributions to an official action' were 'inappropriate' Lindsey Graham basks in the impeachment spotlight The Hill's 12:30 Report — Presented by Nareit — White House cheers Republicans for storming impeachment hearing MORE (R-Tenn.) and Jeff FlakeJeffrey (Jeff) Lane FlakeLindsey Graham basks in the impeachment spotlight Kelly, McSally virtually tied in Arizona Senate race: poll The Hill's 12:30 Report — Presented by Nareit — White House cheers Republicans for storming impeachment hearing MORE (R-Ariz.), both staunch critics of the president, getting only 2 percent each against Trump. 

Former Massachusetts Gov. William Weld (R), who on Monday became the first to officially launch a primary challenge against Trump, came in with just 3 percent of the vote. 

Former Ohio Gov. John Kasich (R) came in with 3 percent of the vote as well. He said on Wednesday that all of his options were on the table for 2020. 

— Julia Manchester