Former Ohio Gov. John Kasich (R) said Wednesday that he does not see a path to defeat President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE in the 2020 Republican primary.

The now-CNN political commentator said on "Anderson Cooper 360" that while he doesn't see a path right now, "that doesn't mean there wouldn't be a path down the road."

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"But right now, I don't see it," he emphasized.

Kasich, who unsuccessfully ran for president in 2016, has been floated as a potential challenger to Trump's reelection campaign.

Two major Republican candidates have entered the race so far: former Massachusetts Gov. Bill Weld William (Bill) WeldRalph Gants, chief justice of Massachusetts supreme court, dies at 65 The Hill's Campaign Report: Biden visits Kenosha | Trump's double-voting suggestion draws fire | Facebook clamps down on election ads Biden picks up endorsements from nearly 100 Republicans MORE and former Rep. Joe Walsh (Ill.).

Former South Carolina Rep. Mark Sanford Mark SanfordOn The Money: Business world braces for blue sweep | Federal Reserve chief to outline plans for inflation, economy | Meadows 'not optimistic' about stalemate on coronavirus deal Trump critic Sanford forms anti-debt advocacy group Republicans officially renominate Trump for president MORE (R) is also considering a possible candidacy.

Any challenger is will face long adds in a primary battle against Trump.

The president enjoys strong approval ratings within his party and the Republican National Committee has already voted to express its “undivided support” for Trump as its 2020 nominee.