Chief Justice John Roberts and every senator will be sworn in as soon as Thursday for the soon-to-begin impeachment trial.

After that Roberts is expected to be sworn in. He will then swear in all 100 senators, according to the aide.

McConnell and Schumer circulated a "Dear Colleague" letter to senators and staff on Wednesday detailing what they can expect during the trial.

"Following past practice, the upcoming impeachment trial necessitates some access modifications to the Senate Wing of the Capitol, the Senate floor and the galleries," they wrote in a three-page letter.

Senators are also circulating rules for senators during the impeachment trial, including banning lawmakers from bringing electronics on the floor. That rule, in particular, has earned public grumbling from lawmakers, who will be required to sit silently in their chairs during the trial.

A Senate GOP leadership aide said on Wednesday that the House managers are expected to come to the chamber on Thursday to read the articles of impeachment againstReports of a planned crackdown on media access drew swift backlash on Tuesday.