ST. JOSEPH COUNTY (WSBT/AP) — The polls are open in Indiana, where an expected record turnout and a surge in first-time voters are expected in a close Democratic primary race between Sens. Hillary Clinton and Barack Obama for the state's 72 delegates.

No widespread problems have been reported across the state.

However, SBT24/7News did receive word of some problems at Hums Elementary School because of staffing problems.

Pam Brunette of the St. Joseph County voter registration office said an inspector failed to report to Hums by 6 a.m. with the list books of voter names for the precinct.

Shortly before 7 a.m., another staffer was sent to the location and voters should have no further problems, she said.

Sen. John McCain already has clinched enough delegates to win the Republican nomination. Also in Indiana, Democrats Jim Schellinger and Jill Long Thompson face off in a tight race for the nomination against incumbent Republican Gov. Mitch Daniels in November.

Only five of Indiana's nine U.S. House members face challengers. The toughest races could be in the 7th District, where new Rep. Andre Carson faces seven Democratic challengers in his effort to retain the seat he won in a March special election, and in the 5th District, where Rep. Dan Burton faces possibly the strongest opponent of his 25-year career.

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