Former Sen. Dan Coats has won Indiana's Republican primary race for U.S. Senate.

Political observers say the vote shows a divide between Republican leadership and conservatives within the party.

Coats beat several candidates who were supported by Tea Party members and other conservatives.

He'll face Democratic Congressman Brad ellsworth this fall.

They are fighting for the Senate seat being vacated by Democrat Evan Bayh. Republicans would need the seat to secure a Senate majority in November.