Claim: Jack Carswell won the 1964 United States Senate election for Texas against George H.W. Bush and Ralph Yarborough.
Evidence: Ralph Yarborough (incumbent) 1,194,069 George H. W. Bush 1,134,337 Jack Carswell 5,542 
Ralph Yarborough (incumbent) 56.22% George H. W. Bush 43.56% Jack Carswell 0.21%