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'''Cynthia Turner Brehm''', formerly known as '''Cindy Speer''' (born May 11, 1960), is the former chairman of the Bexar County [[Republican Party]], based in [[San Antonio]], [[Texas]]. She was chosen by voters in the runoff election held on May 22, 2018, to succeed the interim chairman, [[Mark Dorazio]], who like Brehm is considered a staunch [[conservative]] in the party, which also has a considerable [[Moderate Republican]] wing associated with former state House [[Speaker]] [[Joe Straus]] and departing [[U.S. Representative]] [[Will Hurd]] of Texas' 23rd congressional district, who was succeeded in 2021 by another Moderate Republican, [[Tony Gonzales]].
On July 14, 2020, Brehm lost her bid for a second two-year term, 67 to 33 percent, to her more moderate opponent, John Austin, who carried the support of [[Governor]] [[Greg Abbott]] and state Republican Chairman [[James Dickey]].<ref name=austindefeatsbrehm>{{cite web|url=https://www.tpr.org/post/we-have-lot-healing-do-john-austin-defeats-incumbent-bexar-county-gop-chair|title='We Have a Lot of Healing to Do' - John Austin Defeats Incumbent Bexar County GOP Chair|publisher=Texas Public Radio|date=July 14, 2020|author=Dominic Anthony Walsh|accessdate=July 16, 2020}}</ref>