Democratic presidential candidate Joe Biden got into a testy exchange Tuesday with a Detroit auto-factory worker over gun rights.

The profanity-laced argument appears to start when the male autoworker accuses Biden of opposing Second Amendment rights, in an online video posted by a Politico campaign reporter.

"You’re full of sh--,” Biden appears to respond to the autoworker's accusation.

The exchange occurred after polls opened Tuesday in Michigan for that state's presidential primary, in which Biden now leads rival Vermont Sen. Bernie Sanders.

.@joebiden touring auto plant in Detroit quickly gets into an argument with a worker over guns. pic.twitter.com/37oCrX62HS— Natasha Korecki (@natashakorecki) March 10, 2020

In the video, Biden also points his finger at the worker, within inches of the man’s face, during the exchange and seems to tell him not to be “such a horse’s a--.”