MSNBC: Adam Kinzinger becomes the latest Republican to back Biden

When Adam Kinzinger launched his career in Republican politics in 2010, the Illinois congressional candidate welcomed the support of Sarah Palin and Tea Party groups. It was widely assumed that the young military veteran — Kinzinger was only 33 when he first arrived on Capitol Hill — would be a reliable ally of the GOP’s conservative base.

As regular readers might recall, those assumptions proved largely true. Kinzinger was often described as a relative moderate in his party, but his voting record reflected the congressman’s conservative worldview. While no one ever lumped him in with the GOP’s partisan bomb-throwers, Kinzinger rarely broke party ranks.