Washington (CNN) Republican Sen. Ben Sasse said Sunday that he thinks about leaving the GOP "every morning."

The Nebraska senator's comment comes after he tweeted last week that he "regularly" thinks about switching to become an independent.

Sasse expanded on the thought Sunday on CNN's "State of the Union," telling anchor Jake Tapper, "I probably think about it every morning when I wake up and I figure out, why -- why am I flying away from Nebraska to go to D.C. this week? Are we going to get real stuff done?"

Sasse said he is "committed to the party of (Abraham) Lincoln and (Ronald) Reagan as long as there's a chance to reform it. But this party used to be for some pretty definable stuff. And, frankly, neither of these parties are for very much more than being anti."

Sasse, who has been a vocal critic of President Donald Trump, criticized the "chaos" and "reality TV circus" that he said is going on inside the White House, remarks that come amid reports of upheaval within the administration

Read More