Mitt Romney’s invocation of birtherism on Friday took his campaign to a new level of involvement with the bogus idea that President Obama is actually Kenyan-born and therefore ineligible to serve as Commander-in-Chief. But that dog-whistle theory has already been embraced by many major Republicans with whom Romney has long been happy to consort.

Indeed, as Republicans head down to Tampa for their convention next week, they are preparing to see a veritable festival of politicians who have dabbled in — or fully embraced — birtherism.

Here are the members of the birther bunch who will be speaking in Tampa next week:

See Think Progress for the whole list.