Texas Attorney General Ken Paxton achieved a decisive victory over four-term incumbent Senator John Cornyn in the Republican primary runoff, securing about 64% of the vote. This outcome, bolstered by a late endorsement from former President Donald Trump, marks a significant shift for the MAGA movement and poses a challenge to the traditional Republican establishment in Texas. Cornyn, who has served in the Senate since 2002, struggled to connect with the conservative base, particularly after facing backlash for bipartisan efforts on gun safety following the Uvalde school shooting. Despite his extensive political experience, Cornyn's criticisms of Trump made him a target for the former president's retribution campaign. Paxton's victory is notable given his history of legal issues, including impeachment and felony charges, which voters overlooked in favor of his aggressive political style. Following this upset, the Texas Senate race is now rated as 'Lean Republican,' with Paxton set to face Democratic candidate James Talarico, who has emerged as a strong fundraiser.