Ind. Democratic Rep. Donnelly to run for Senate

By the Associated Press | May 9, 2011 | 8:13 AM EDT

FILE - Democratic Rep. Joe Donnelly shown in this undated file photo will announce on Monday May 9, 2011 that he is seeking the Indiana Senate seat currently held by Sen. Richard Lugar. Two Democrats with firsthand knowledge of Donnelly's plans told The Associated Press that the congressman is entering the race because he believes that Lugar will lose a Republican primary offering him a path to the Senate. (AP Photo/File)

SOUTH BEND, Ind. (AP) — Indiana Democratic Rep. Joe Donnelly says he's running for the Senate seat currently held by Republican Richard Lugar.

The three-term congressman from South Bend made the announcement Monday in a video posted to his campaign website. Donnelly says in the video that as a senator he would continue fighting to protect American jobs. He also speaks out against what he calls Republican proposals to privatize Social Security and Medicare.

Donnelly is the only Democrat who has entered the race.

Lugar faces a strong challenge from his right by state Treasurer Richard Mourdock for the Republican nomination.