The legal challenge to Matthew Whitaker’s appointment is a trap

On Monday, Senators Richard Blumenthal (D-CT), Sheldon Whitehouse (D-RI), and Mazie Hirono (D-HI), filed a lawsuit alleging that Donald Trump’s appointment of Matthew Whitaker as acting attorney general is unconstitutional.

The lawsuit is fairly likely to prevail — or, at least, a lawsuit of this sort is fairly likely to win five votes on the Supreme Court. It also potentially presents a grave danger to the next Democratic presidency and to the future viability of the en...