Indiana's long-serving Lugar fights for survival

INDIANAPOLIS (AP) — The face of Indiana politics for nearly four decades, Republican Sen. Richard Lugar is battling for political survival against a tea party-backed GOP challenger who says the senator has become more interested in compromising with liberals in Washington than representing conservatives back home.

With Mitt Romney expected to coast to victory in three GOP presidential primaries, Lugar's re-election fight — the toughest in his 36-year career — is the highest-profile contest in four states with voting Tuesday.

AP Photo/Darron Cummings

Sen. Richard Lugar respond...