Associated Press: 'U.S. Senator Richard Lugar Loses Indiana GOP Primary to Tea Party Foe'

Source:Associated Press- 6th term U.S. Senator Richard Lugar (Republican, Indiana)

"U.S. Sen. Richard Lugar was ousted Tuesday by a tea party-backed challenger in Indiana's Republican primary, abruptly ending his nearly four-decade career as one of Indiana's best-known and popular politicians." 

From the Associated Press