Sleazebag (or sleazeball)  here's a generic definition: "a slimey, untrustworthy person, usually male, especially in dealings with the opposite sex


 Sleazebag, while generally used colloquially, does have meaning.  Calling someone a mysogynistic sleazebag might, more than anything, be redundant. 
Describing Donald Trump as a "sleazebag" would be the statement of an opinion.  Clearly, there is ever-mounting evidence that the opinion is justified, but it's still an opinion.  

There are very few individuals remaining who deny Mr. Trump is a "sleazebag".  More frequently his defenders say "but Bill Clinton was a sleazebag, too!"  

Mr. Clinton, without doubt, was (perhaps still is...I don't know) an adulterer who had consensual sexual activities with other women while he was married to Hillary.  IMO: Sleazebag scale of 1-10....maybe a 6
Trump, based on his own boasts and the testimony of an ever-increasing number of women....(sexual assaultive behavior)....Sleazebag scale:  an easy 10