United States congressional delegations from Arizona
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Since Arizona became a U.S. state in 1912,[1] it has sent congressional delegations to the United States Senate and United States House of Representatives, beginning with the 63rd United States Congress in 1913. Before becoming a state, the Arizona Territory elected a non-voting delegate at-large to Congress from 1864 to 1912.[2]. Each state elects two senators to serve for six years, and varying members of the House, depending on state population, to two-year terms.[3] Arizona has sent nine members to the House in each delegation since the 2010 United States Census.[4]
A total of 57 people have served Arizona in the House and 14 have served Arizona in the Senate. The first woman to serve Arizona in the Senate was Isabella Greenway.[5] Seven women have served Arizona in the House, including Kyrsten Sinema and Martha McSally, who are the only women who have served Arizona in the Senate.[6]
The current dean, or longest serving member, of the Arizona delegation is Representative Raul Grijalva of the 7th district, who has served in the House since 2003.[7] Carl Hayden was Arizona's longest-serving senator, and his 56 years as a senator is the sixth-longest tenure in American history.[6]