In Indiana, with 82 percent of precincts reporting, architect Jim Schellinger and former U.S. Rep. Jill Long Thompson each had about 50 percent of the vote in the Democratic contest to challenge Daniels. As of March 31, Daniels had four times as much money - and no primary challenge.

In North Carolina, Democratic Lt. Gov. Beverly Perdue cruised to victory over State Treasurer Richard Moore after a $16 million fight to try to succeed Democratic Gov. Mike Easley, who is barred by state law from seeking a third consecutive term.

Also in North Carolina, Republican U.S. Rep. Walter Jones, who pushed to bring "freedom fries" to the U.S. House cafeteria in a symbolic protest of French opposition to the Iraq war, withstood a challenge from Joe McLaughlin, a former Army officer. Jones, a seven-term congressman, later soured on the war.

On the Republican side of the North Carolina gubernatorial race, Charlotte Mayor Pat McCrory defeated four candidates, including State Sen. Fred Smith, his nearest opponent.

In other races, Democratic State Sen. Kay Hagan beat entrepreneur Jim Neal for the right to run against Republican Sen. Elizabeth Dole, who breezed to a comfortable victory in her own primary after facing token opposition from Pete Di Lauro, a former New York police officer.

Five of Indiana's nine U.S. House members also faced primaries. Republican Rep. Dan Burton, the state's longest-serving congressman, fended off a challenge from emergency-room physician John McGoff.

In the Seventh District, new Democratic Rep. Andre Carson bested seven challengers as he sought to retain the seat he won in a March special election, when he succeeded his late grandmother, Rep. Julia Carson.

He will face Republican Jon Elrod in November.