The Republican party presents, as a core value, the notion that it is more "moral" than the Demcorat party. Republicans profess to consider marital fidelity to be a biger factor when deciding who to vote for than Democrats do. This makes infidelity (and homosexual conduct, and drinking, etc) by Republican candidates a greater hypocrosy than infidelity by Democrat candidates.
Was Clinton impeached for sexual harrasment?
Clinton was impeached on a very flimsy charge of lying about getting a header. That is the sum total of the real charge against Clinton.
The impeachment was an attempted coup.