On Monday, Rep. Steve Stockman (R-Texas) tweeted out a photo of what he considers to be the “best gun lubricant around.” — “liberal tears.”

Stockmann, who is challenging Sen. John Cornyn (R-Texas) in the 2014 Republican primary for the U.S. Senate, routinely takes humorous jabs at the left on social media.

Take a look at the tweet and accompanying photo below: