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Unofficial voting tallies gave longtime State Sen. Don Balfour (R-Snellville) and other incumbent senators who serve the Gwinnett area commanding wins in Tuesday's primary election races.
With almost 93 percent of precincts reporting in District 9, Balfour -- the longest-serving republican in the Senate -- had earned 63 percent of votes over two challengers.
Publishing company owner Steve Ramey had captured 20 percent, and businessman Travis Bowden just under 18 percent, respectively, according to unofficial totals.
District 9 covers a swath of Gwinnett from the Mountain Park area to Lawrenceville and through Dacula.
Balfour, a businessman who has served since 1992, has extolled his conservative values in his campaign. He's stressed his previous work to protect Second Amendment rights, discourage illegal immigration, freeze property taxes, restrict the use of eminent domain and support pro-life measures.
Balfour will face Democrat Scott Drake, a Lawrenceville attorney, in the November general election.
In District 55, two Democrats squared off, with no Republican challenger waiting in November.
Early Wednesday, also with 93 percent of precincts reporting, incumbent Gloria Butler held nearly 79 percent of votes over Mark Williams, a high school counselor.
Butler has held the seat since 1998 and has written or helped write more than 100 pieces of legislation since 1999, she said. District 55 straddles the Gwinnett-DeKalb line and covers the southernmost pocket of Gwinnett.
Much larger in terms of geography, District 47 covers Barrow and Madison counties, along with portions of Jackson and Clarke counties.
There, one-term incumbent Frank Ginn, an engineer, held 68 percent of votes over current Barrow County Commission Chairman Daniel Yearwood, unofficial results showed.
Ginn will face Athens research counselor Tim Riley in November.
— Staff writer Tyler Estep contributed to this article