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 TrumpGrassroots America shows the people support Donald Trump Trump speaks to rebel Libyan general attacking Tripoli Dem lawmaker: Mueller report shows 'substantial body of evidence' on obstruction 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 FlakePollster says Trump unlikely to face 'significant' primary challenge Trump gives nod to vulnerable GOP Sen. McSally with bill signing Flake opens up about threats against him and his family 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 SasseSenate needs to stand up to Trump's Nixonian view of the Fed GOP senators divided on Trump trade pushback The Hill's 12:30 Report: Assange faces US charges after dramatic arrest MORE (R-Neb.).

— Julia Manchester