George Will notes Citizens United in this morning’s column about Justice Stevens’s replacement.

The recent decision most pleasing to conservatives was this year’s Citizens United, wherein the court overturned part of the McCain-Feingold campaign finance law. The four liberal justices deplored the conservatives’ refusal to defer to Congress’s expertise in regulating political speech.

So conservatives should rethink their rhetoric about “judicial activism.” The proper question is: Will the nominee be actively enough engaged in protecting liberty from depredations perpetrated by popular sovereignty?