(Fox News) Sen. Richard Lugar, R-Ind., lost a primary battle Tuesday to tea party challenger and Indiana state treasurer Richard Mourdock for the seat he has held since 1977.

Lugar’s defeat makes him the first and likely only senator to lose renomination this year.

After returns from the primary came in, Lugar conceded to Mourdock before a crowd of supporters. He says he wants to see a Republican in the White House and will support Mourdock in his race against Democrat Joe Donnelly for the Senate seat.

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