Senate Majority Leader Harry Reid was hospitalized early Friday morning as a “precaution” after feeling ill, a spokesman said, adding that doctors concluded "everything is normal" after testing.
“Early this morning, Senator Reid was not feeling well and as a precaution decided to go to the hospital. Tests have been conducted and everything is normal. He is alert, resting and feeling better,” spokesman Adam Jentleson said in a statement. "Doctors have asked that he remain in the hospital for observation so he will not be working today."
Reid was released later in the day.
"The doctors diagnosed him as exhausted, not anything more serious, and have cleared him to go back to work," Jentleson said in a later statement.
A Senate Democratic aide said that Reid was discussing upcoming legislation with his leadership colleagues by telephone on Friday morning.
Reid's top lieutenant Sen. Dick Durbin, D-Ill., said on the Senate floor Friday that Reid "sounds hale and hearty and anxious to get home and then back to work."
Reid is 74. In an interview this week, he indicated that he has no intention of leaving his position as a top Senate leader, saying "I don’t want to do it more than eight more years."
He suffered a mild stroke in 2005 at the age of 65.
The Senate is set to finish its business for the year on Friday.
Members of the Senate have faced grueling overnight sessions this month amid a rancorous fight over nominations. Late Thursday, leaders announced an agreement that would wrap up several pending nominations but punt a final vote on Fed chair nominee Janet Yellen until January.
Kasie Hunt contributed to this report.