Senator Patrick Leahy, the Vermont Democrat who is expected to preside over the impeachment trial of former President Donald Trump, has returned home after being rushed to a Washington hospital out of caution, his spokesman said.

“The Capitol Physician suggested Senator Leahy go to George Washington University Hospital for observation tonight out of caution,” spokesman David Carle said in a written statement. “With the test results returned and a thorough examination back, Senator Leahy is home. He looks forward to getting back to work. Patrick and Marcelle deeply appreciate the good wishes they received tonight.”

Leahy, 80, is the interim President of the Senate, holding him responsible for chairing that chamber in the absence of Vice-President Kamala Harris.

Leahy’s Senate status also puts him in third place in order of presidential succession after Harris and House Speaker Nancy Pelosi, D-Calif.

The House indicted Trump earlier this month for instigating his supporters’ uprising in the Capitol Complex on Jan. 6. Thousands of members of a mob broke into the convention halls, smashed windows and searched offices.

Five people, including a Capitol Police Office, died as a result of the riot.

The mob disrupted a joint session of Congress that confirmed Joe Biden’s election as president.