Entrenched in the most brutal fight of his career, Sen. John Cornyn (R-TX) is brandishing his conservative credentials as he fends off attacks from firebrand rival Ken Paxton that claim he’s a deal-cutting centrist disguised in a Make America Great Again cloak.

Cornyn is working to show GOP voters why he’s the ultimate ally to President Donald Trump in the face of lackluster polling against Paxton, the Lone Star State’s attorney general. From chairing hearings on former President Joe Biden’s mental acuity and clawing back border security money to supporting Trump nominees and writing bills, Cornyn says his agreement with Trump isn’t just anecdotal.