The newest senator is South Carolina Rep. Tim Scott, whom Gov. Nikki Haley said she would appoint to fill the vacancy caused by the pending resignation of Jim DeMint.
The most senior senator was Hawaii's Daniel Inouye, who died at 88 just a few hours after Haley's announcement.
Much has been made of the fact that Scott will be the only black senator and the first black Republican senator since Edward Brooke of Massachusetts, who was elected in 1966 and 1978.
Haley noted that fact and...