Not sure how this will go over but here goes...
I worked fulltime on the Hart and Clinton campaigns and would support both guys today. However Clinton's affair cost us the White House and left the party in shambles.
The Democratic Party needs to step up and embrace fidelity. Liberals should advocate for fidelity loud and often. The right wing need not corner the market on this issue. Fidelity is good for families and good for children. Democratic politicians are role models and should expect to be held accountable if they are exposed as philanderers. There is no grey area here.
Liberal support for individual rights, freedom and privacy does not presuppose fidelity. We appear wishy washy on this issue suggesting we believe that all behavior is private. However society has always maintained acceptable standards of behavior. Liberals should clarify and articulate support for good behavior. Fidelity is a democratic value and yet we let the other side own it.