Turnout light in primary election so far

Turnout appeared to be light as Iowa voters went to the polls to choose a Republican candidate for governor and a Democratic nominee for U.S. Senate.

Secretary of State Michael Mauro estimated 150,000 Republicans and 100,000 Democrats would vote in Tuesday's primary election. Iowa has more than 2 million registered voters.

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Mauro says the Republican contest for governor is the biggest draw. Terry Branstad, Rod Roberts and Bob Vander Plaats are vying to face Democratic Gov. Chet Culver.

Republican races in the 2nd and 3rd congressional districts also are drawing attention, in part because so many are running - four in the 2nd and seven in the 3rd District.

Three Democrats - Roxanne Conlin, Tom Fiegen and Bob Krause - are seeking to oppose Republican Sen. Charles Grassley.

Linn County  - 11:00 a.m. voter turnout

As of 11:00 a.m. 2.53% of registered voters have turned out in Linn County. That translates to 3707 people, which is 700 more than at this time in 2006. If that trend continues, the 2010 primary might fall on the higher end of primary turnouts for Linn County, around 13%.

Johnson County - 9 a.m. primary turnout is third lowest in 30 years

As of 11:00 a.m. in Johnson County, 1.65% percent of registered voters had come out to vote. That translates to 1,434 actual voters.