[Digger]

Yawn. No one is getting arrested. This is all kabuki theater. They are just doing this song and dance to get the rubes worked up in an election year.

Yep. What else would be done. This nation is a banana republic.

[Nero Germanicus]

If the House of Representatives votes to hold her in criminal contempt, the contempt citation is referred to the U.S. Attorney for the District of Columbia for prosecution. However the U.S. Attorney is a left wing Democrat appointed by Barack Obama (as are all 93 U.S. Attorneys Obama appointees).
The U.S. Attorney can refer the contempt citation to a Grand Jury and the penalties, if convicted, can be one month to one year imprisonment and a fine of $100 to $1000.