Just 27 percent of Americans now offer a positive rating for Romney, the Republican party’s nominee in 2012, compared to 40 percent who give him negative marks. And just over half of Republicans – 52 percent – give him a thumbs up, while 15 percent disagree.

In September of last year, when Romney was widely expected NOT to seek the presidency again, his ratings stood at 32 percent positive/ 39 percent negative. With Republicans, that split was 60 percent positive/ 13 percent negative.

While former Florida governor Jeb Bush is not quite as well-known as Romney, with 13 percent of respondents saying they don’t know the name, he’s also seen a drop in approval since announcing that he’s “actively exploring” a 2016 run.

Just 19 percent of Americans now give Bush a positive rating, while 32 percent assess him negatively. His fans include just 37 percent of Republicans, while 15 percent offer a poor assessment of him.