MADISON, Wis. (AP) — A Republican lawmaker is refining his bill that would punish students who disrupt speakers after critics said it was too vague. Rep. Jesse Kremer amended his bill Friday to limit punishable behavior to violence or other disorderly conduct that disrupts free speech. The original bill would’ve punished a range of behaviors, including “boisterous” and “profane” conduct. Under the amendment, a student would be suspended after interfering with free speech twice and expelled after interfering three times. Under the original version, a student could be suspended or expelled after two offenses. Scot Ross, executive director of liberal group One Wisconsin Now, says Kremer’s bill is unconstitutional and the amendment makes it worse. An Assembly committee plans to vote on the measure Tuesday.