1980 - Fmr Gov Bob Casey Sr (D-PA) v Senator George H. W. Bush (R-TX)

[Huey Long is a Republican]

So, for this TL, imagine Bob Casey Sr runs for 1970 PA Gov Election and serves two terms and becomes the Democratic Frontrunner in 1980 (Ted Kennedy dies or something at Chappaquiddick). Meanwhile, Bush Sr wins the 1970 Texas Senate Race and is the 1980 Republican Nominee (let's say Reagan suffers a plane crash in 1975 and Ford wins re-election).

Who is the running mate of both men and what dies the map and NPV look like? How do the 1980s look as well?

[Blow by blow, the passion dies]

HW Bush was pro-choice at one point.

[Agonized-Statism]

Senator George Bush (R-TX) / Congressman Jack Kemp (R-NY)
Fmr. Governor Bob Casey (D-PA) / Senator Lawton Chiles (D-FL) ✓

Bush obviously picks Kemp to sate the emerging conservative movement that Reagan embodied IOTL, while Casey probably follows the New Dealer orthodoxy of the day and balances the ticket with a Southerner. If Ford is the incumbent, it's a narrow victory for Casey, but he would run into trouble if he went against the global 1980s trends of financialization and deregulation. A President Casey would might triangulate after 1982.