"Nothing like waking up to a poll saying you're the nation's least popular senator," Flake wrote. "Given the public's dim view of Congress in general, that probably puts me somewhere just below pond scum."
Fifty-two percent said they are less likely to vote for Flake in another election because of his vote on the background check bill.
Flake said his vote against gun background check legislation proposed by Sens. Joe ManchinJoe ManchinDem 2020 hopefuls lead pack in opposing Trump Cabinet picks Manchin: Sanders backers should challenge me in Dem primary Greens launch ads against two GOP senators for Pruitt votes MORE (D-W.Va.) and Pat Toomey (R-Pa.) is what's weighing down his approval numbers. The Senate voted 54 to 46 in favor of the legislation, six votes short of the 60 it needed to pass the chamber.
"Now, notwithstanding the polling firm's leftist bent, I would assume that my poll numbers have indeed taken a southerly turn since my vote against the Manchin-Toomey background check proposal," Flake continued. "It was a popular amendment, and I voted against it."
The junior senator from Arizona also linked to an article by The Arizona Republic's Joanna Allhands which "captures the complexity of the issue" of that gun vote.