While the legislature is in session or legislators are traveling to the legislature, both the US and most state constitutions provide immunity from:

Question

Quizplus · Accepted Answer

Legislators are provided immunity from arrest while the legislature is in session or when they are traveling to and from legislative sessions, except in cases of treason, felony, and breach of the peace. This immunity is designed to ensure that they can perform their legislative duties without interference. There is no immunity from prosecution; this provision only applies to arrest.

While the Legislature Is in Session or Legislators Are Traveling