Former failed presidential candidate Jeb Bush believes that someone should challenge President Donald Trump in 2020.

“I think someone should run just because Republicans ought to be given a choice…” Bush said in an interview with CNN contributor David Axelrod.

Bush acknowledged that it would be difficult for a Republican to challenge Trump, but believed it would be good for conservatism.

“It’s hard to beat a sitting President, but to have a conversation about what it is to be a conservative, I think it’s important,” he continued.

Axelrod teased the quote ahead of his interview with Bush that will be aired on Saturday night.

Bush spent $150 million in his attempt to win the 2016 Republican presidential primary but was stomped by Trump, who ran as an insider challenging the Republican establishment.