Jeff Flake: I won't run for president

That role was formally announced on CBS This Morning on Tuesday during a segment about his future ambitions. A moderate Republican who left his U.S. Senate seat earlier this month, Flake was considered a potential Republican challenger to President Trump in 2020.

“I’ve always said that I do hope there is a Republican who challenges President Trump,” he said. “That will not be me.”

Flake will work on a series of pieces that will search for common ground in the U.S., CBS This Morning co-host John Dickerson said.