Former Congressman Artur Davis is a lifelong Democrat who served as a co-chairman of Barack Obama’s 2008 presidential campaign. Earlier this year, after becoming exasperated with the marginalization of conservative Southern Democrats, Davis formally switched parties. Yesterday he appeared on CNN to upbraid Vice President Biden for his incendiary “chains” remarks (Obama thought they were no biggie, as he explained in a hard-hitting interview with…Entertainment Tonight):

Davis also headlined a Romney campaign press conference on Team Obama’s vicious tactics in Virginia this week. Video is available here. This gentleman is very serious, thoughtful and persuasive. If enjoyed his CNN and press conference performances, you’ll probably love his upcoming address at the Republican National Convention: