Marion County's Board of Elections says U.S. Sen. Richard Lugar can't vote at the Indianapolis home he sold in 1977, but can register elsewhere in the county.

The board voted 2-1 along party lines Thursday to disqualify Lugar from voting at the home. The vote marks a rare victory for Indiana's tea party activists who have accused Lugar of voter fraud for voting from an address he hasn't lived at for 35 years.

Lugar can fix the problem by registering at another address in Indianapolis, like the farm he owns. The vote does not remove Lugar from the May primary ballot.

Lugar spokesman Andy Fisher says lawyers are reviewing the decision and might appeal it. He calls the vote a partisan move by the two majority Democrats on the board.