Sanford: 'I don't know' if I would vote for Trump in 2020

Sanford: 'I don't know' if I would vote for Trump in 2020
© Greg Nash

Former South Carolina Rep. Mark SanfordMark SanfordThe Hill's Campaign Report: Late bids surprise 2020 Democratic field Michigan GOP attempting to have Trump be only Republican candidate on ballot Weld files to run in GOP presidential primary in New Hampshire MORE, a Republican challenging President TrumpDonald John TrumpTrump says he will 'temporarily hold off' on declaring Mexican drug cartels as terror organization House Judiciary Committee formally receives impeachment report Artist behind gold toilet offered to Trump sells banana duct-taped to a wall for 0,000 MORE in a longshot primary campaign, said on Sunday that he isn't sure if he would still consider voting for Trump in 2020, despite allegations that the president solicited foreign interference to benefit him politically. 

Host Jake TapperJacob (Jake) Paul TapperCNN Pelosi town hall finishes third in cable news ratings race, draws 1.6M Defense secretary fires Navy chief over SEAL war crimes case Democrats look to next steps in impeachment MORE asked Sanford on CNN's "State of the Union" if he would vote for Trump over Vice President Joe BidenJoe BidenHouse Judiciary Committee formally receives impeachment report Democratic strategist: 'Medicare for All' exposes generational gap within party Yang expands campaign with senior hires for digital operations MORE if they end up being the candidates in 2020. 

"I don’t know," Sanford responded. "What I've said is I'm an issue guy." 

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Sanford said he's going to base his decision on "who is going to be closest to me" with a focus on debt and spending. 

Former Illinois Rep. Joe WalshJoe WalshGeorgia GOP submits only Trump's name for primary Michigan GOP attempting to have Trump be only Republican candidate on ballot Weld files to run in GOP presidential primary in New Hampshire MORE, a fellow 2020 GOP challenger, said there is "no way in hell" he would vote for Trump.

"I'm running against President Trump because he's unfit," Walsh said. 

"The debate is about Trump, period," he added. 

The Republicans were also split on where they stand on impeachment, with Walsh saying the president deserves to be impeached based on his public actions alone and Sanford saying Congress needs to follow a formal investigation process. 

Trump is facing an impeachment inquiry after a whistleblower came forward with allegations that Trump asked Ukraine to investigate Biden and his son. 

A partial memo of a call between Trump and Ukrainian President Volodymyr Zelensky shows Trump asking the foreign leader to investigate the Bidens. 

Trump publicly called on China and Ukraine to investigate the Bidens when speaking to reporters last week.