Arizona's ninth congressional district was created as a result of the 2010 Census. The first candidates ran in the 2012 House elections, and the first representative was seated for the 113th Congress in 2013. The district is located entirely within Maricopa County. Most of the old 5th district became the new 9th; 60 percent of the 9th's territory came from the old 5th. It is centered around Tempe and includes southern Scottsdale, western Mesa, northwestern Chandler, and southern Phoenix including the Ahwatukee district. As of the 2012 general election, there were 344,770 registered voters. Of these, 118,077 were registered Republican, 107,123 were registered Democratic, 3,232 were registered Libertarian, and 761 were registered Green. A substantial number, 115,531 were independents. It is split between liberal bastions such as Tempe, strongly conservative portions of the East Valley, and more moderate Republicans in eastern and southern Phoenix. The district was one of seven across the United States whose winner was not declared on 2012 election night. Although Democratic candidate Kyrsten Sinema held a narrow lead over Republican candidate Vernon Parker, the number of provisional and absentee ballots to be counted significantly exceeded the margin between the two. Sinema was officially declared the winner on November 12, 2012. Sinema was easily reelected in both 2014 and 2016. Sinema gave up the seat to make a successful run for Senate in 2018 to replace retiring U.S. Senator Jeff Flake. Former Phoenix MayorGreg Stanton was elected to succeed her.
Election results in statewide races
List of members representing the district
Arizona began sending a ninth member to the House after the 2010 Census, the 2012 Congressional election, and the convening of the 113th Congress.
Complete election results
2012
As the result of the closed primary on August 28, 2012, Democrat Kyrsten Sinema faced Republican Vernon Parker in the November 6 general election. Sinema was the first candidate to announce an intention to run. A former member of both the Arizona House of Representatives and the Arizona State Senate, until resigning to launch her House campaign in Arizona's 9th congressional district, she was endorsed by EMILY's List, AFL-CIO, The Professional Firefighters of Arizona, Former Congressman Sam Coppersmith, among others. On January 11, 2012, Republican Travis Grantham announced that he was running. Arizona StateSenate Minority LeaderDavid Schapira announced his candidacy on January 17, 2012. Schapira was born in the district, has resided there for most of his life, and currently represents Tempe and South Scottsdale. On February 9, 2012, former Clinton White House aide and Arizona prosecutor Andrei Cherny launched his bid for Congress in the new district. Cherny was Chair of the Arizona Democratic Party. His campaign slogan is "Save the Middle Class," for his mission is to "put our government back on the side of Arizona's families." He served as an Assistant Attorney General under Terry Goddard and worked in the Clinton White House. Both men have given their endorsements to Cherny. Former Ahwatukee State Rep. Rae Waters, Mesa City Councilman Dennis Kavanaugh, former Phoenix Mayor Phil Gordon and many other strong Arizona leaders have done so as well. On February 22, 2012, Republican Martin Sepulveda declared his candidacy for the 9th congressional district. Martin Sepulveda is a former Chandler City Councilman, a business owner, and a Commander in the United States Navy having served four tours in Afghanistan and Iraq. On March 3, 2012, Lieutenant Colonel Wendy Rogers announced her candidacy for the 9th congressional district. Rogers and husband Hal Kunen, along with children George and Emily, settled in Tempe in 1996, upon their retirement from the United States Air Force. Rogers is a Republican. Leah Campos Schandlbauer announced her candidacy March 26, 2012. She is a former CIAoperations officer and a conservative Republican.
