All documented at bradcarsonisaliberal.com. The site's mission statement:

This website is dedicated to outlining Brad’s real record in Congress. So while Brad may run as fast and furious as he can to the right, hoping the dust he leaves behind will cover over his liberal past, this website will clear the air so you, the voters, know Brad’s real record, rather than his rhetoric.

Hat tip to former Tulsan Adam Doverspike, who runs the excellent unofficial blog covering Tom Coburn's campaign for Senate and contributes to group political blog redstate.org.