Suez Canal? I would hope that Nixon would actually support the valued French and British allies instead of turning on them for pretty crass political reasons, but I don't know his feelings on the matter.
The '54 midterms should be good for the Republicans on the sympathy vote, I'm unsure about the '56 general. Does Adlai get his OTL round 2? Can Nixon, young, disliked, probably embroiled in the Suez Canal win? Who is Nixon's VP candidate?
My pet favourite weird political thing (The Big Switch) might go off in '58, which frees up a couple alternative Republicans for the '60s.
What happens in Korea? This depends on when Eisenhower dies, of course, but it's possible that Korea would still be an ongoing concern.