Commissioner Brian Stewart is the only candidate for State Representative in OH-78 to earn the endorsement of the Ohio Republican Party, Ohio Right to Life, the Ohio Chamber of Commerce. He is the only candidate endorsed by the Republican Party in Pickaway, Fairfield, and Muskingum counties. He has earned an Aq rating from Buckeye Firearms Association and the National Rifle Association (NRA) - the highest rating available to a non-incumbent candidate. And Stewart has earned the endorsement of more than 75 elected and Republican Party officials across Ohio's 78th District, including:

​United States Senator Rob Portman
Congressman Steve Stivers
Congressman Troy Balderson
Ohio Senate President Pro Tem Bob Peterson
State Representative Gary Scherer (OH-92)
State Representative Adam Holmes (OH-97)
State Representative Jeff LaRe (OH-77)

Fairfield County
The Fairfield County Republican Party
County Commissioner Dave Levacy
County Commissioner Steve Davis
County Commissioner Jeff Fix
Mayor of Lancaster David Scheffler
County Prosecutor Kyle Witt
County Auditor Jon Slater
County Engineer Jeremiah Upp
County Clerk of Courts Branden Meyer
County Treasurer James Bahnsen
Lancaster City Attorney Randall Ullom
Municipal Clerk of Courts Valeda Slone
Lancaster City Treasurer Bob Wolfinger
Lancaster City Council President David Uhl
Bloom Township Trustee Brian Randles
Republican State Central Committeewoman (District 20) Angela White
Fairfield GOP Executive Committee Secretary Jennifer Sitterley
Fairfield County Sheriff’s Office Chief Deputy Alex Lape, Fairfield GOP Executive Committee
Baltimore Chief of Police Mike Tussey
Violet Township Trustee Darrin Monhollen, Fairfield GOP Executive Committee
Amanda Clearcreek School Board President Austin Reid
Assistant Lancaster City Prosecutor Stephanie Hall
Fairfield GOP Executive Committee Member Joe Bizjak

Pickaway County
The Pickaway County Republican Party
Commissioner Harold Henson
Commissioner Jay Wippel
Mayor of Circleville Don McIlroy
County Treasurer Ellery Elick
​County Prosecutor Judy Wolford
County Clerk of Courts James Dean
Ashville Mayor Chuck Wise
South Bloomfield Mayor Matt Pettibone
Circleville City Councilman Tom Spring
Circleville City Councilwoman Michelle Blanton
Circleville City Councilwoman Sherri Theis
Circleville City Councilman Todd Brady
Circleville City Councilman Barry Keller
Pickaway GOP Chairman Mike Whitten
Pickaway GOP Vice Chairman Sandy Darby
Pickaway GOP Secretary Jane Miller
Pickaway GOP Treasurer David Beavers
Washington Township Trustee Dennis Shaw
Walnut Township Trustee Wilson Ett
Ashville Councilman Nelson Embrey
Ashville Councilman Brad Lutz
Ashville Councilman Randy Loveless
Ashville Councilwoman Tracie Sorvillo
Ashville Councilman Roger Clark

Hocking County
County Commissioner Jeff Dickerson
​County Commissioner Gary Waugh
Mayor of Logan Greg Fraunfelter
​County Prosecutor Ben Fickel
County Auditor Ken Wilson
Logan City Council President Fred Hawk
Logan City Councilwoman Judie Henniger
Hocking GOP Executive Committee Member Noah Johnson

Morgan County
Morgan GOP Chairman Tom Jenkins
Morgan County Commissioner Tom Bragg
County Auditor Gary Woodward
County Recorder Melissa Hivnor
Morgan Local Schools Board Member Rick Rose
Bristol Township Trustee Eric Bell
Morgan GOP Secretary Vicki Hartley
Morgan GOP Treasurer Kelly McCoy
Board of Elections Member Cindy Tuttle

Muskingum County
The Muskingum County Republican Party
​County Commissioner Mollie Willison Higgins Crooks
Muskingum County Auditor Debra Nye
Muskingum County Young Republicans Chairman Cody Pettit