In today's NY Times John Dean destroys Trump's claim that Clinton's e-mail problem is "bigger than Watergate". First, Watergate has the name because of a bungled burglary of the Democratic National Committee offices. It eventually revealed "several abuses of presidential power by Nixon, which included other illegal break-ins and burglaries; illegal electronic surveillance; misuses of government agencies such as the IRS, CIA and FBI; the practice of making political opponents into enemies and using the instruments of government to attack them; and then employing perjury and obstruction of justice to cover it all up."
Dean thinks that Trump is much like Nixon except that Nixon was "a man of intelligence, with a strong understanding of government, a deep knowledge of the world and a heartfelt vision for lasting peace." Trump has not displayed any of these qualities.
Dean does not absolve Clinton of making mistakes but it's clear who he favors.