Pinal County Sheriff Paul Babeu, left, and State House Speaker David Gowan announced Monday that they're running for the Republican nomination in the 1st District.  Incumbent Democrat Ann Kirtkpatrick is running in 2016 for the U.S. Senate seat held by Republican John McCain.

PHOENIX — The race for the Republican nomination in eastern Arizona's 1st Congressional District is getting crowded.

State House Speaker David Gowan and Pinal County Sheriff Paul Babeu  announced Monday that they're running for the Republican nomination. Incumbent Democrat Ann Kirtkpatrick is running in 2016 for the U.S. Senate seat held by Republican John McCain.

Former Arizona Secretary of State Ken Bennett and rancher and businessman Gary Kiehne previously announced their candidacies for the GOP nomination in the 1st District.

Former state legislator Tom O'Halleran is running for the Democratic nomination in the 1st District.

The sprawling 1st District is competitive between Democrats and Republicans. It stretches from the Utah line on the north to Graham County and Tucson's northern outskirts on the south


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