Politico asks here.

For Wertheimer, and the other lobbyists, lawyers and academics who push for tougher campaign cash restrictions and often refer to themselves as “the reform community,” this year’s election is not merely a disappointment.
. . .
This year feels more like a repudiation of their lives’ work. And it has raised two basic questions that strike at the very core of the ethos of the campaign-finance reform effort: Can the flow of money into elections be limited if the courts have deemed political giving and spending a First Amendment right? Can any system of rules to make money more transparent ever keep up with the legal devices that powerful interests use to keep their influence hidden?