Poll: Trump easily defeats potential GOP rivals in hypothetical primary matchups

President TrumpDonald John TrumpTrump pushes back on recent polling data, says internal numbers are 'strongest we've had so far' Illinois state lawmaker apologizes for photos depicting mock assassination of Trump Scaramucci assembling team of former Cabinet members to speak out against Trump MORE performed a hostile takeover of the Republican Party in 2016 but as he prepares for his 2020 reelection bid, a new poll shows that GOP voters would overwhelmingly support him against several intraparty rivals.

A Hill.TV American Barometer survey of 1,001 registered voters conducted Nov. 16-17 found that Trump would easily defeat onetime presidential rival, Ohio Gov. John Kasich. Among self-identified Republican respondents, 67 percent said they would choose Trump while only 14 percent said they would back the outgoing Ohio governor.

The president would also have no trouble beating Arizona Sen. Jeff FlakeJeffrey (Jeff) Lane FlakeArpaio considering running for former sheriff job after Trump pardon Overnight Energy: Warren edges past Sanders in poll of climate-focused voters | Carbon tax shows new signs of life | Greens fuming at Trump plans for development at Bears Ears monument Carbon tax shows new signs of life in Congress MORE, a long-time critic with whom he has clashed repeatedly. In a hypothetical two-way matchup, of those surveyed, just 9 percent of Republican voters supported Flake while 70 percent backed Trump in the poll.

Among independent voters (who are allowed to vote in party primaries in many states, including the first in New Hampshire), Kasich presents a more stiff challenge to Trump.

Of those that identified as independents, 33 percent said they would support Kasich while 28 percent said they would back Trump. Trump remained ahead among all voters with 33 percent support to the outgoing Ohio governor's 32 percent.

While Kasich's potential bid might have some currency among independents, ultimately, it is Republican voters who will determine Trump's future within the party, said Dritan Nesho, CEO of HarrisX, the company that conducted the survey.

"Even though independents and Democrats might have slightly different preferences, that doesn't matter. Ultimately it's registered Republicans that will decide that question," Nesho said during Tuesday's broadcast of "What America's Thinking."

"Frankly, it's his party," Nesho said. "By a factor of two-to-one, almost half of Republicans associate with Trump over the party."

No current or former Republican officials have announced a primary challenge to the president, but several remaining anti-Trump politicians have urged others to make a go of it.

During a Sunday interview with CNN, Flake said that he would be unlikely to mount a challenge to Trump.

“I think the future of the party is with people with an optimistic vision moving ahead. I don’t think that will be me. I think there are better candidates out there. But somebody needs to run,” he told host Jake Tapper.

Flake will be departing from the Senate at the end of the year. He declined to run for reelection after several polls of Arizonans found that his anti-Trump image made him unpopular among Republicans. In July, a Morning Consult survey found that Flake was the second-least popular senator in his or her own state. 

In the latest American Barometer survey, Flake was the second-least popular potential GOP challenger among Republican respondents. Nebraska Sen. Ben SasseBenjamin (Ben) Eric SasseThe Hill's Morning Report - Trump lauds tariffs on China while backtracking from more To cash in on innovation, remove market barriers for advanced energy technologies Feds face mounting pressure over Epstein's death MORE, who is not well-known nationally, was supported by only 8 percent of Republican voters.

The two GOP politicians who received the most support were outgoing Speaker of the House Paul RyanPaul Davis RyanEmbattled Juul seeks allies in Washington Ex-Parkland students criticize Kellyanne Conway Latina leaders: 'It's a women's world more than anything' MORE (R-Wis.) and former 2012 GOP presidential nominee Mitt RomneyWillard (Mitt) Mitt RomneyA US-UK free trade agreement can hold the Kremlin to account Ex-CIA chief worries campaigns falling short on cybersecurity Overnight Defense: US, Russia tensions grow over nuclear arms | Highlights from Esper's Asia trip | Trump strikes neutral tone on Hong Kong protests | General orders ethics review of special forces MORE, who were supported by 20 percent and 19 percent of Republican respondents, respectively.

—Matthew Sheffield