Alternate 1972: President Humphrey

[Beet]

On the day before the election, November 1968, a mole in the Nixon campaign reveals to CBS news that Nixon had deliberately sabotaged the Paris Peace talks using his connections with the South Vietnamese government, in order to help his election efforts. Walter Cronkite plays a tape of Nixon discussing the sabotage on the evening news. On the following day's confusion, Nixon denies the tape, but turnout is suppressed and Humphrey narrowly wins the election. After four years Humphrey is renominated with Muskie as VP.

Who do the Republicans nominate for President in 1972? Who wins? Maps?

Possibilities:
Humphrey vs. Reagan
Humphrey vs. Connally
Humphrey vs. Rockefeller (a possibility?)

[Beet]

Correction to my previous posting-

This scenario has Hubert Humphrey elected President in 1968, therefore, George Romney and George Schultz would not have been in cabinet.

Therefore-

The Republicans nominate former Michigan Governor George Romney for President. 

George Romney surprises everyone with his Vice Presidential pick, by naming George Schultz, who holds a PhD in industrial economics, had served in the Eisenhower administration as a senior staff economist on the Council of Economic Advisers, and who is currently dean of the University of Chicago Graduate School of Business. 

Ironically, this scenario could still end with Carter winning in 1976 and Reagan winning in 1980. The only difference is that we are spared with a President's resignation.