“The constitutional amendment before us,” Harry Reid said Tuesday, describing a proposal to give federal and state governments the authority to regulate political giving, “isn’t about limiting free speech.” Harry Reid, may I present the American Civil Liberties Union. I am sure you two have met before. Writing in June that the nonprofit “strongly opposes” the so-called Udall amendment, the ACLU’s Laura Murphy and Gabriel Rottman called the Democratic proposal “deceptively complex,” “unnecessary,” “redundant of existing law,” “dangerous for liberties,” “vague,” “overbroad,” “exceedingly dangerous to democratic processes,” and “the first time the amendatory process has been used to directly limit...