Rep. Steve Stockman (R-Texas), an expert troll in the GOP, is back at it again.

Stockman, who once said "the right to keep and bear arms is granted by God,"tweeted a photo Monday of "the best gun lubricant around" -- "liberal tears":

The best gun lubricant around. (HT )

Stockman is challenging Sen. John Cornyn (R-Texas) in the 2014 Republican primary for the U.S. Senate.