Indiana state Treasurer Richard Mourdock has defeated longtime incumbent Dick Lugar in the Republican Senate primary, according to NBC News.

The political obituary of Lugar began at home.

From National Journal:

Sixteen months ago, a collection of tea party organizers met in the city of Tipton. Their goal was to address flaws in the movement that were exposed in 2010, when infighting and competing agendas largely driven by national groups and consultants hindered its ability to make lasting gains. What resulted was “Hoosiers for a Conservative Senate,” a network of 60 tea party groups dedicated to retiring Lugar.

Mourdock will face Democratic Congressman Joe Donnelly in the general election.