A Longtime Cornyn Staffer Just Revealed How Could a Choice Texas Voters Made Giving Him the Boot

Texans dodged a bullet when John Cornyn lost his Senate primary to Ken Paxton in May.

Washington wonks place a lot of faith in the adage “staff is policy” and one of Cornyn’s longtime staffers just showed why.

The Cornyn hand revealed a big reason behind his old bosses’ RINO ways as he defected to the other side.

The Republican Who Never Sounded Like One

Cornyn spent four decades building a career as a mainstream Texas Republican.

Trump backed Paxton in the primary, and Texas voters delivered Cornyn a landslide defeat in May.

Weeks before that vote, reporters caught Democrats crossing over to help decide the Republican primary, and Cornyn cheered them on instead of shutting the door.

"Good for him!" Cornyn said. "It is the law. Why exclude people who want to vote for Republicans in our primary and why would we want to narrow our base of support leading into general elections?"

Ken Paxton and the Republican Party of Texas sued to close the primary to Republicans only, and Cornyn fought them on it in public while his own name was still on the ballot.

Conservative writer Pat Adams pointed to a 2016 poll showing only three in ten GOP Capitol Hill staffers backed Trump, with nearly one in five saying they would have voted for Hillary Clinton instead.

Cornyn's office was never the exception to that number.

It was the rule.

Jacob Smith Made His Choice Official

Jacob Smith spent five years as Cornyn's deputy legislative director and policy adviser.

This week Smith signed on as deputy policy director for James Talarico, the Democrat running to unseat Paxton in November.

"I've worked for Republicans like Senator Cornyn my entire career, but this year I'm proud to be joining James Talarico's campaign," Smith said.

He framed it as caring about "the needs of everyday people" instead of "playing partisan politics."

Translation: a man who spent five years shaping Cornyn's legislative agenda took one look at the actual Republican nominee and ran straight into a Democrat's arms.

Conservative commentator Michael Quinn Sullivan said the defection proved "GOP primary voters were correct" to dump Cornyn for Paxton.

He is right, and Smith just handed him the receipts.

A Cornyn spokesperson insisted the senator still plans to "support the Republican ticket" this fall.

Texas Republicans have heard that promise before, right around the same time Cornyn was in a courtroom fighting his own state party over who gets to vote in his primary.

Every staffer who spends years drafting a senator's positions absorbs that senator's instincts, and Smith's instincts led him straight to a Democrat within months of Cornyn leaving office.

Staffers do not defect to the other party by accident, they defect because they spent years inside an office that never fully believed what it claimed to believe on the campaign trail.

Paxton, by contrast, ran as exactly what he is, and Trump backed him precisely because there was no daylight left to exploit.

Trump-backed voters did not blow up the Texas primary over nothing.

They looked at exactly this kind of staff, this kind of instinct, and this kind of institutional drift, and they picked Paxton instead.

Texas Republicans do not need another poll or another op-ed to understand what just happened in their own Senate primary.

They need to watch where a five-year Cornyn insider runs the moment he is free to run anywhere he wants, because he just told them exactly what he thought of the man who signed his paychecks.

Sources:

• "Cornyn Staffer Makes Unusual Move That Has Everyone Talking, Convinces Paxton Voters They Were Right," RedState, August 18, 2026.
• Joseph Chalfant, "John Cornyn's Staffing Fiasco Is Unbelievably Revealing," Townhall, August 17, 2026.
• Joseph Chalfant, "John Cornyn Defends Move to Allow Democrats Vote in Texas Primaries," Townhall, August 15, 2026.
• "Democrat James Talarico Hires Top Staffer From Republican John Cornyn," Mediaite, August 2026.
• "GOP Senator's Aide Takes Job With Democrat After Boss Loses Primary: Report," Daily Caller, August 17, 2026.