U.S. Rep Bill Posey of Florida should be first on your list.
I'm always eager to call out members of "my side," and unfortunately, I didn't see this CSPAN clip from 2012 until just now, but it's still valid. In a congregational hearing with CDC representatives, Posey plays the tired gambit of trying to imply that vaccines cause autism, but then cowardly retreats and claims he is not against vaccines.
Where I come from, we call those kind of people "liars." Watch him for yourself:
Here's a recap. He made a naked argument of authority stating that his predecessor is a doctor who believes vaccines cause autism, then claimed Africa never had autism until they received vaccines, then rudely belittled and interrupted the CDC representatives again and again while he accused them of wasting his time for not answering questions in his leading format..
Posey is exactly what the right doesn't need right now, an obnoxious, dishonest, anti-science fool.