Mark Martin stands up to Twitter follower who questions Donald Trump support

Former NASCAR driver Mark Martin isn't afraid to stand up for himself on social media.

Jeff Zelevansky/NASCAR via Getty Images

Mark Martin, a 40-time Sprint Cup Series race winner and five-time championship runner-up, isn’t typically one to play rough on Twitter.

But when the 57-year-old driver who retired from NASCAR at the end of 2013 is criticized, he will stand up for himself.

Martin did just that a couple days ago when a follower lashed out at him over his support of Donald Trump, who is seeking the Republication nomination for president of the United States.

Check out the somewhat testy Twitter exchange: