Perry compared him to Tebow, who apparently is famous for coming back from slumps to play better football. I suppose that Perry thinks that he, like Tebow, will soon come out of what he perceives to a slump and improve his chances in the primaries.
Unlikely, because Perry is a dimwitted opportunistic goober. He is more entertaining to watch than football for me, because I do not have to sit through three hours of tedious commercials and inane sports commentary for something amusing to happen. Perry opens his mouth, puts both feet in, and is instantly amusing. He is more of a Shemp, Moe or Larry than a Tebow.