(CNN)Despite looking back to the 1970s battle over the Equal Rights Amendment, "Mrs. America" is as fresh and urgent as the half-century of political jockeying that has unfolded since those events. Cate Blanchett heads a sensational cast as conservative activist Phyllis Schlafly, in a limited series -- premiering on Hulu, but produced sibling network FX -- that's among the very best of both.