Beto O'Rourke just crashed a news conference on the deadly school shooting in Texas ... confronting Governor Greg Abbott and other Republican leadership, including Ted Cruz, and getting escorted out.
Beto showed up unannounced to Wednesday's press briefing in Uvalde, where 19 children and 2 teachers were shot and killed the day before at an elementary school, and went off on the state's GOP leaders.
Video shows Beto approaching the stage, where Abbott is sitting on the dais along with Lt. Gov. Dan Patrick, and blames them for the tragedy, saying the blood is on their hands.
Beto says to the group, which includes Senators Ted Cruz and John Cornyn ... "This is on you until you choose to do something." He also says the incident was predictable.
Beto's been vocal about the school shooting on social media, mostly going after Abbott, but now he's literally taken the crusade to the Governor's feet.
Someone on stage shoots back at Beto, who is running for Texas Governor, telling him this isn't the time or the place to get political and calling him an "a**hole." There are reports the man is Uvalde Mayor Don McLaughlin.
Beto's then escorted out by law enforcement, but not before turning back to say his piece ... while some folks in the crowd call for him to be able to speak.
Meanwhile, U.S. Rep. Mike Thompson joined us on "TMZ Live" and called for background checks on anyone trying to buy a gun in the country.
The California congressman says he and other gun owners in his district support background checks for gun purchases and calls for 10 GOP Senators to step up and get a law passed that's been sitting on the Senate floor.