Public opinion analyst says a centrist GOP primary challenge would not last long against Trump

Public opinion analyst Karlyn Bowman on Wednesday said that a centrist primary challenge to President TrumpDonald John TrumpHarris bashes Kavanaugh's 'sham' nomination process, calls for his impeachment after sexual misconduct allegation Celebrating 'Hispanic Heritage Month' in the Age of Trump Let's not play Charlie Brown to Iran's Lucy MORE would likely not last long due to historical precedent. 

"Certainly both Reagan and Pat Buchanan were running from the right, so this would be something new, and it won't go very far," Bowman, a senior fellow at the American Enterprise Institute, told Hill.TV's Jamal Simmons on "What America's Thinking." 

Before he was president, Ronald Reagan challenged then-President Gerald Ford in the 1976 Republican primary, while Pat Buchanan challenged then-President George H.W. Bush in the 1992 Republican primary. 

"If you challenge an incumbent president, you have to deal with a lot of enthusiasm, a lot of mobilization," Marist Poll director Lee Mirinigoff said in the same segment. "That's not the middle." 

Former Sen. Jeff FlakeJeffrey (Jeff) Lane FlakeFlake donates to Democratic sheriff being challenged by Arpaio in Arizona The Hill's Morning Report - Trump says US-China trade talks to resume, hails potential trade with Japan, UK Joe Arpaio to run for Maricopa County sheriff in 2020  MORE (R-Ariz.), who has said he would like to see a Republican challenge Trump in the party's 2020 primary, revealed on Tuesday that he would not he would not challenge the president. 

“It’s a difficult path anyway. The [Republican National Committee] and the president’s campaign are now melded, they’re trying to do everything they can to squelch any opposition," Flake said.

Other potential GOP primary challengers that have been floated including former Ohio Gov. John Kasich (R-Ohio) and Sen. Ben SasseBenjamin (Ben) Eric SasseManufacturing group leads coalition to urge Congress to reauthorize Ex-Im Bank The Hill's Morning Report - Trump ousts Bolton; GOP exhales after win in NC Trump endorses Sasse in 2020 race MORE (R-Neb.).

— Julia Manchester