He's been standing his ground.
Shia LaBeouf was arrested last night during his live streaming President Trump protest, which has been going on since the inauguration.
While the stream was happening, some unknown man walked into camera view and said something and while it's unknown, it set Shia off.
Shia began screaming at the man, grabbing at his scarf and taking him down to the ground. Due to the nature of the protest, there were already cops present and the quickly diffused the situation and arrested Shia.
It's looking likely to be a misdemeanor assault charge.