Sen. Mitch McConnell was admitted to the hospital on Sunday and "is receiving excellent care," his spokesperson said.
Spokesperson David Popp released the statement and did not provide further information about McConnell’s condition or why he was hospitalized.
McConnell, 84, was hospitalized earlier this year for more than a week after experiencing "flu-like symptoms," his team said.
Three years ago he tripped at a Washington dinner event and was later hospitalized with a concussion.
In 2019 he fractured his shoulder after falling at home.
He announced last year that he would not seek re-election and is set to retire at the end of his term in January.
He was first elected to his post in 1984 and was first elected Republican leader in the Senate in 2007, a post he held until early 2025.
Several elected officials in Washington in recent years have faced questions about their mental and physical fitness for office as they have aged; former President Joe Biden stepped down from his reelection bid in 2024 after concerns about his mental fitness surged following a infamous debate against then-former President Donald Trump, and Sen. Dianne Feinstein faced questions before she died in 2023 at the age of 90.