The Gallup poll — which sampled 1,001 U.S. adults between Jan. 21 and Jan. 27 — found opinions toward the men have fluctuated significantly over time.

A Gallup poll conducted last month showed that former President Joe Biden is viewed unfavorably by 57% of those surveyed, the New York Post reported. Just 39% had favorable views of Biden, who left office earlier this year after one term in the White House.

A new Gallup poll ranks the five living U.S. presidents by favorability, revealing who Americans view most positively—and who ranks at the bottom.