| 50th Arizona State Legislature | |||||||||
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 Arizona State Capitol (2014) | |||||||||
| Overview | |||||||||
| Legislative body | Arizona State Legislature | ||||||||
| Jurisdiction | Arizona, United States | ||||||||
| Term | January 1, 2011 – December 31, 2012 | ||||||||
| Senate | |||||||||
| Members | 30 | ||||||||
| President | Russell Pearce (through November 9, 2011) Steve Pierce (effective November 10, 2011) | ||||||||
| Temporary President | Sylvia Allen | ||||||||
| Party control | Republican (21–9) | ||||||||
| House of Representatives | |||||||||
| Members | 60 | ||||||||
| Speaker | Kirk Adams (through April 28, 2011) Andy Tobin (effective April 28, 2011) | ||||||||
| Party control | Republican (40–20) | ||||||||
| Sessions | |||||||||
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| Special sessions | |||||||||
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The 50th Arizona State Legislature, consisting of the Arizona State Senate and the Arizona House of Representatives, was constituted in Phoenix from January 1, 2011, to December 31, 2012, during the first two years of Jan Brewer's first full term in office. Both the Senate and the House membership remained constant at 30 and 60, respectively. The Republicans gained three seats in the Senate, increasing their majority to 21–9. The Republicans also gained five seats in the lower chamber, giving them a 40–20 majority.