Captain America by name, Captain America by nature.

When Chris Evans isn't busy defending the planet from intergalactic threats, he's out policing the digital highways of Twitter — shutting down Trump's tweets about global warming, and criticising the president's relationship with Putin.

On Wednesday, however, the Marvel actor set his sights on a different target: Fox Nation host and right-wing political commentator Tomi Lahren.

Lahren has spent much of the past couple of days live-tweeting CNN's Democratic debates, attacking the various candidates and angrily tweeting about immigration. At one point during the first debate, she tweeted this:

If you traipse your kid 2,000 miles in dangerous conditions you're not only a criminal, you're a shitty parent. — Tomi Lahren (@TomiLahren) July 31, 2019

At the time of writing, that tweet has almost 29,000 responses. Unsurprisingly, many outraged people were quick to fill Lahren's replies with counter-arguments.

On Wednesday, Evans joined their ranks.

Wow. The complete lack of sympathy, respect, and general awareness is astonishing. Also, I would carry my kid through fire if it meant escaping hell. https://t.co/FPt9gJOuEA — Chris Evans (@ChrisEvans) July 31, 2019

Evans' decision to respond to Lahren's tweet isn't a big surprise. The actor is very politically active, and not just on Twitter.

Earlier in the year it was revealed that he has a political website in the works, which Evans described as a "civic engagement project" that will aim to help people understand various issues affecting the U.S. and beyond. Sign us up.