The Watergate break-in is never uncovered?

[Beet]

Nothing much would have changed. The '74 recession would have killed Nixon's popularity, and the Republicans likely would have nominated Reagan but fallen short in '76. Then in '80, either Reagan comes back with an "I told you so" campaign or Bush wins the nomination but is pushed so far to the right that he basically is forced to become like Reagan, and history picks up where it left off in the real world. It was good that Nixon was caught because it demonstrated the principle that the president's hold on office is not unconditional. While that's always been the case in theory, it was never actually put to the test fully until Nixon's resignation.