Senator Dick Lugar faces a tough challenge in the GOP primary there on Tuesday from the state's treasurer, who is running to his right.
U.S. Congressman Mike Pence is running for governor, meaning there is no incumbent in the 6th district race.
A poll by a Republican and Democratic pollster shows Richard Mourdock with a large lead over incumbent Senator Richard Lugar.
Monroe County says the electronic voting equipment it recently purchased is working well.
Yellow cards that contain polling information are not required to cast a ballot.
Lugar and his wife will have to re-register to vote in Decatur Township for the state's primary election.
The Libertarian Party is meeting Saturday to nominate Rupert Boneham for governor.
Patricia Sandifer only had one signature when she turned in her petition. Candidates are supposed to have 4,500.
Gubernatorial candidate Mike Pence officially filed Monday to appear on the Indiana primary ballot.
Rick Santorum did not have enough signatures to qualify for Indiana's primary ballot.