"Watergate" designates so many activities that to say it was or wasn't a crime is really meaningless. However, the list of real Federal crimes committed by Nixon, either directly related to, tangentially related to, or exposed by investigation of, Watergate was quite substantial.
His impeachment and removal was amply justified by the facts, however much it was facilitated by disloyal Leftist moles within the Administration and by media bias.
The phenomenon called "Benghazi" may or may not be "bigger" that Watergate. That depends on facts not yet in evidence.
The Watergate "coverup", which eventually required that many felonies be committed, was necessary because of the underlying reality of the Plumbers and the activities of CREEP in general.
The Benghazi coverup (so far) involves normal politician lying and misrepresentation to feather their own nests, and that's all.
Now, you probably think (as I do) that what is being covered up is a crime, or crimes, which could result in Obama's resignation or removal. That may well be right.
But what the House GOP (so far) is "exposing" are embarrassments and mistakes, not crimes.
John Boehner and Darrell Issa are not Sam Ervin and Peter Rodino. They want to rack up points for an election campaign that is never coming.
Unless and until they form a committee to investigate, and hire some real prosecutors, this is all just normal Potomac gasbag bullshit. IOW, don't get your hopes up.
Issa’s committee already has all the authority needed to conduct a proper investigation ~ Gloria is right about that. Waiting until a special committee is formed will simply delay this forever.
Maybe she is in full force with what was done to Nixon must not be done to her.
Seeing how it was done to Nixon can help her avoid a little whitewater.
IMHO.