Donnelly en Donnelly wins Lugar's Senate seat <p></p><p> After 36 years in the Republican column, Indiana’s Senate seat has switched parties as Congressman Joe Donnelly defeated Republican Richard Mourdock Tuesday.</p><p>Considered one of the key races in determining control of the U-S Senate, the race between the two candidates – separated by a razor-thin margin for months – was colored by a significant influx of outside money and negative ads.&nbsp;</p> Wed, 07 Nov 2012 10:58:00 +0000 Sean Bueter 6409 at Donnelly wins Lugar's Senate seat