In three tweets, the Democratic Congressman attacked people who have refused to get the COVID vaccine, saying they are creating new COVID variants and putting children in danger.

Swalwell’s Twitter rant began a little after 11:00 p.m. His first post read: “I’m losing my COVID patience. I’ve tried to reason with the unvaxxed. I’ve directed some to medical pros. I don’t judge but hear them out and steer them to facts. The unvaxxed love to say it’s about choice. But you know who doesn’t have a choice? My 3 kids under 5.”

His thoughts on the matter carried over into two more tweets. Swalwell began the next tweet by writing, “Blah blah blah you have a right to not get vaxxed. Fine. Then business and government have a right to tell you that you’re not welcome to patronize or you can’t get on a plane.”

“Because what right do you think you have to expose my kids to your COVID? As parents, let’s own the outrage,” he continued. “The looney carnival barkers at the school board meetings DO NOT reflect where most parents are. Your unvaxxed status is creating new variants. So get your damn shot. Or, stay inside your house. But don’t mess with my kids.”

As Swalwell said, he is the father of three young children, with the youngest—a son—being born at the beginning of November.

The Congressman represents the East Bay region of California, and he has been a fervent supporter of vaccines, which has caused him to clash with his conservative counterparts in the House.

When Ohio Representative Jim Jordan tweeted in October that Ohio should ban all vaccine mandates, Swalwell wrote that “Ohio should mandate sexual assault reporting for coaches.” Jordan has previously been accused of allegedly knowing about sexual assaults committed by a team doctor while he was a wrestling coach at Ohio State but doing nothing about it. Jordan has repeatedly denied having any knowledge of the assaults and he has not faced any formal charges in the matter.

Swalwell’s Monday tweets were met with thousands of responses. Many people who commented in his thread supported his statements, and a large number of responses came from fellow parents commiserating over similar frustrations.

Newsweek contacted Swalwell’s office for further comment but did not hear back in time for publication.