Nixon would have lost, and Reagan would have been the nominee in 1968.
...and Reagan would have lost ot Humphrey BIG. Reagan would have played the role of Goldwater.
HUmphrey was too liberal and boring. Reagan would have been charismatic and won a landslide over Humphrey. Vietnam would of still ahppened, hurting Humphrey and giving Reagan victory in 1968.
A film star with one year of political experience beating the folksy Humphrey with 17 years in the senate and 4 years as vp behind him? I don't think so.
Remember Reagan only came to power because of Watergate and Carter. It took the American people quite a while too accept Reagan as an alternative even in the election of 1980. In '68 he would have lost badly.