The Republicans should shut up about Rep. Weiner. No comments. Dodge any questions. Or say "Resign? That is up to the Representative and the citizens of NY".
Why? Frequently in business a company is better off with a severally wounded competitor than a bankrupt competitor. The assets of a bankrupt competitor may end up in strong hands, creating a stronger, tougher competitor. Same here. Weiner is now a non-factor. Formerly a Lib Democrat attack dog, he is now discredited and completely marginalized.
If he quits, his seat will most certainly be filled with another far-left Dem. Why push for that?
Republicans should let him stew and be a thorn in the opposition party's side.