What part did the Watergae Scandal play in the resignation of Richard Nixon?

In the end, I think that the Watergate Scandal played a
decisive role in the resignation of Richard Nixon.  The event itself, the cover up that
followed, and the revelation of the unsavory nature of the Nixon Presidency all
significantly damaged the President's credibility.  The Watergate Scandal made the
President weak from a political point of view.  The President lacked credibility with
the American public to pass legislation and act as Commander-in-Chief.  Regardless of
the fact that he won a second term with a resounding majority, the Watergate Scandal
took its toll on how Americans viewed their President.  With mounting criticism from the
public and legislative investigations, a Constitutional crisis began to
mount.

Additionally, the perception from foreign nations
was that Nixon would not be able to weather the Watergate storm, making negotiations
with other nations very difficult.  In the end, the Watergate Scandal resulted in the
resignation of the President as criticism began to mount and members of the legislative
branch were preparing to undoubtedly impeach the President.  In avoidance of this fate,
resignation seemed to be the only option.