Rep. Steve StockmanStephen (Steve) Ernest StockmanWhen did we stop thinking big? Save the International Space Station Former Texas congressman found guilty of 23 felonies Trump's right — to prevent gun violence, don't disarm our military MORE (R-Texas) tweeted a photo Monday of what he called “the best gun lubricant around.”

Stockman, who’s running against incumbent Sen. John Cornyn (R-Texas) next year, tweeted a photo showing a can labeled “liberal tears” spraying a gun.

Stockman strongly opposes gun control and even threatened to impeach President Obama last January for announcing gun control-related executive orders.

“The right to keep and bear arms is granted by God and protecting from government aggression by the Constitution,” Stockman said in a statement earlier this year.