He was taken to George Washington University Hospital for treatment and is expected to remain there for a few days of observation and treatment.
The incident has sparked speculation about the length of McConnell's absence from the Senate, and how it will impact the Republican Party's plans. McConnell had been working late into the night before his fall, trying to secure a Senate vote to reject a new District of Columbia criminal code. It remains to be seen how his absence will affect this effort.
McConnell's spokesperson, David Popp, confirmed the news in a statement, adding that the Senator's condition is being closely monitored. The incident has prompted an outpouring of support from colleagues on both sides of the aisle, who have wished him a speedy recovery.