not true they can be arrested - and certainly not true in the current situation.
Article I, Section 6, Clause 1:
The Senators and Representatives shall receive a Compensation for their Services, to be ascertained by Law, and paid out of the Treasury of the United States. They shall in all Cases, except Treason, Felony and Breach of the Peace, be privileged from Arrest during their Attendance at the Session of their respective Houses, and in going to and returning from the same; and for any Speech or Debate in either House, they shall not be questioned in any other Place.
it only applies to civil cases, not criminal ones.
and it only applies while they are literally in "their respective Houses," meaning at the literal Capitol building, or coming or going to the Capitol building to vote.
not true they can be arrested - and certainly not true in the current situation. Article I, Section 6, Clause 1: The Senators and Representatives shall receive a Compensation for their Services, to be ascertained by Law, and paid out of the Treasury of the United States. They shall in all Cases, except Treason, Felony and Breach of the Peace, be privileged from Arrest during their Attendance at the Session of their respective Houses, and in going to and returning from the same; and for any Speech or Debate in either House, they shall not be questioned in any other Place.
What part of EXCEPT TREASON did you miss fren?
it only applies to civil cases, not criminal ones.
and it only applies while they are literally in "their respective Houses," meaning at the literal Capitol building, or coming or going to the Capitol building to vote.
https://constitution.congress.gov/browse/essay/artI-S6-C1-1-2/ALDE_00001047/
There are several examples of congressmen being convicted or charged with crimes during their terms. Here's just one.
https://en.wikipedia.org/wiki/Harry_E._Rowbottom