Former Florida Gov. Jeb Bush (R) criticized the efforts of some in his party to use the threat of shutting down the government to force defunding of ObamaCare, warning the move was politically "quite dicey" and unrealistic.

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"I'd just add a little dose of reality," the potential presidential candidate said at the National Press Club on Wednesday, following statements from Louisiana Gov. Bobby Jindal (R).

"If you control one-half of one-third of leverage in Washington, D.C., your ability to influence things are also relative to the fact that you have one-half of one-third of the government... It's a reality. This isn't a hypothetical. So as we get closer to these deadlines, there needs to be an understanding of that, or politically it's quite dicey for the Republican Party."

Bush's remarks reflect the views of many establishment Republicans that the push from congressional conservatives — including Sens. Ted CruzRafael (Ted) Edward CruzSenate Dems hold floor talk-a-thon against latest ObamaCare repeal bill Overnight Finance: CBO to release limited analysis of ObamaCare repeal bill | DOJ investigates Equifax stock sales | House weighs tougher rules for banks dealing with North Korea GOP state lawmakers meet to plan possible constitutional convention MORE (R-Texas), Mike LeeMichael (Mike) Shumway LeeOvernight Defense: Senate passes 0B defense bill | 3,000 US troops heading to Afghanistan | Two more Navy officials fired over ship collisions Senate passes 0B defense bill Overnight Finance: CBO to release limited analysis of ObamaCare repeal bill | DOJ investigates Equifax stock sales | House weighs tougher rules for banks dealing with North Korea MORE (R-Utah), and Marco RubioMarco Antonio RubioOvernight Defense: Senate passes 0B defense bill | 3,000 US troops heading to Afghanistan | Two more Navy officials fired over ship collisions Senate passes 0B defense bill Trump bets base will stick with him on immigration MORE (R-Fla.), Bush's protege — is untenable strategically and damaging politically.

The fight has led to a bitter public split between the two factions of the GOP. Bush has long hewed more toward the establishment end of the Republican spectrum.