If it were me, I would compile a dossier on every member of congress, filled with scandalous quotes before I ran Ads like that, and when questioned by the press about the propriety of such ads, I would start trotting out smears from the left.
The game of politics used to at least be Polite Up front, and dirty in the back, a defacto set of Marquis of Queensbury rules. If both sides dont adhere to them, then no side can. That is the common sense that the Right in this country is lacking.