| Number: | 50th |
| Start: | January 1, 2011 |
| End: | December 31, 2012 |
| President: | Russell Pearce (through November 9, 2011) Steve Pierce (effective November 10, 2011) |
| Pro Tem: | Sylvia Allen |
| Speaker: | Kirk Adams (through April 28, 2011) Andy Tobin (effective April 28, 2011) |
| Senators: | 30 |
| Reps: | 60 |
| S-Majority: | Republican (21–9) |
| H-Majority: | Republican (40–20) |
| Sessionstart1: | January 10 |
| Sessionend1: | April 20, 2011 |
| Sessionstart2: | January 9 |
| Sessionend2: | May 3, 2012 |
| Special Session1 Start: | January 19 |
| Special Session1 End: | January 20, 2011 |
| Special Session2 Start: | February 14 |
| Special Session2 End: | February 16, 2011 |
| Special Session3 Start: | February 14 |
| Special Session3 End: | February 16, 2011 |
| Special Session4 Start: | November 11 |
| Special Session4 End: | November 11, 2011 |
| Previous: | 49th |
| Next: | 51st |
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.
The Legislature met for two regular sessions at the State Capitol in Phoenix. The first opened on January 10, 2011, and adjourned on April 20, while the Second Regular Session convened on January 9, 2012, and adjourned sine die on May 3.[1] [2]
There were four Special Sessions, the first of which was convened on January 19, 2011, and adjourned on January 20;[3] the second convened on February 14, 2011, and adjourned sine die on February 16; the third convened on February 14, 2011, and adjourned sine die February 16; and the fourth convened on November 11, 2011, and adjourned sine die later that same day.
The asterisk (*) denotes members of the previous Legislature who continued in office as members of this Legislature.
| District | Senator | Party | Notes | |
|---|---|---|---|---|
| 1 | Steve Pierce | Republican | ||
| 2 | Jack Jackson Jr. | Democrat | ||
| 3 | Ron Gould | Republican | ||
| 4 | Scott Bundgaard | Republican | ||
| 5 | Sylvia Allen | Republican | ||
| 6 | Lori Klein | Republican | ||
| 7 | Nancy Barto | Republican | ||
| 8 | Michele Reagan | Republican | ||
| 9 | Rick Murphy | Republican | ||
| 10 | Linda Gray | Republican | ||
| 11 | Adam Driggs | Republican | ||
| 12 | John Nelson | Republican | ||
| 13 | Steve Gallardo | Democrat | ||
| 14 | Robert Meza | Democrat | ||
| 15 | Kyrsten Sinema | Democrat | ||
| 16 | Leah Landrum Taylor | Democrat | ||
| 17 | David Schapira | Democrat | ||
| 18 | Russell Pearce | Republican | Removed from office through a special election on November 8, 2011 | |
| Jerry Lewis | Republican | Won special election on November 8, 2011 | ||
| 19 | Rich Crandall | Republican | ||
| 20 | John McComish | Republican | ||
| 21 | Steve Yarbrough | Republican | ||
| 22 | Andy Biggs | Republican | ||
| 23 | Steve Smith | Republican | ||
| 24 | Don Shooter | Republican | ||
| 25 | Gail Griffin | Republican | ||
| 26 | Al Melvin | Republican | ||
| 27 | Olivia Cajero Bedford | Democrat | ||
| 28 | Paula Aboud | Democrat | ||
| 29 | Linda Lopez | Democrat | ||
| 30 | Frank Antenori | Republican | ||
The asterisk (*) denotes members of the previous Legislature who continued in office as members of this Legislature.