Election officials are expecting low turnout in Oklahoma [3] today, where there are few competitive races to excite voters. At the top of the ballot, Republican Sen. James Inhofe [4] is being challenged by three others for the GOP nomination. Inhofe, who first won a special election in 1994, has been a popular official in Oklahoma. With the Republicans' general fortunes trending downwards nationally, however, the Democratic party is putting up an active fight for the seat this year.

From that side, newcomer Andrew Rice [5] is looking to knock out Inhofe. Rice's political experience began in 2006, when he was elected to the Oklahoma Senate. He is expected to have an easy victory today over the other Democratic candidate, Jim Rogers. Inhofe’s Republican opponents include Dennis Lopez [6], Evelyn L. Rogers [7] and Ted L. Ryals [8].

Most of Oklahoma’s U.S. House delegation is unopposed in Tuesday's primary. Reps. Mary Fallin [9], Tom Cole [10] and Frank Lucas [11] — all Republicans — have no primary opponents (though each has at least one Democrat running against them). The state’s lone Democratic representative, Dan Boren [12], has a primary challenger in Kevin Coleman [13]. In the 1st congressional district, Rep. John Sullivan [14] (R) is being challenged by Fran Moghaddam Farvardin [15], while Mark Manley [16] and Georgianna Oliver [17] are seeking the Democratic nomination.

Stay tuned tomorrow for our recap of the election, including results for each race and a brief rundown of the November ballot.