Former Sen. Jeff FlakeJeffrey (Jeff) Lane FlakeFlake donates to Democratic sheriff being challenged by Arpaio in Arizona The Hill's Morning Report - Trump says US-China trade talks to resume, hails potential trade with Japan, UK Joe Arpaio to run for Maricopa County sheriff in 2020  MORE (R-Ariz.) responded to President TrumpDonald John TrumpTed Cruz knocks New York Times for 'stunning' correction on Kavanaugh report US service member killed in Afghanistan Pro-Trump website edited British reality star's picture to show him wearing Trump hat MORE’s remarks that he is "very happy" some Republican senators have left and "gone on to greener pastures."

Flake, a frequent Trump critic before leaving the Senate last year, responded by tweeting a picture of himself standing on a beach with the caption "greener pastures."

Flake included a link in the tweet to a report detailing the remarks Trump made Wednesday while speaking to the Faith and Freedom Coalition.

ADVERTISEMENT

Flake shot down rumors of a possible 2020 challenge to Trump and joined CBS News as a political contributor. He is set to join Harvard's Institute of Politics this fall as a resident fellow.

Although he was a vocal critic of Trump and many of his hard-line immigration policies, Flake voted with the Republican bloc most of the time.

It is unclear who Trump was referring to with his "greener pastures" remarks Wednesday, but he had previously referenced the late Sen. John McCainJohn Sidney McCain The 13 Republicans needed to pass gun-control legislation Biden's debate performance renews questions of health At debate, Warren and Buttigieg tap idealism of Obama, FDR MORE (R-Ariz.) in the speech, leading many to think the comment was about him.