Democrats, controlling the Senate, blocked efforts to join the House investigation of the Benghazi fiasco.

Democratic Senator Bob Menendez (D, NJ) objected, saying the probe is politically motivated and without merit.

Of course, blocking Senate participation in a joint investigation isn’t at all politically motivated or meritless.

If this thing truly is mere politics, why not join in, with enthusiasm? Why not push for full release of unredacted documents and emails and etc from State, DoD, and the White House? Why not expose all of these to the light of day and to the eyes of Americans? If there really is no there there, that will become painfully obvious, in short order, to the Republicans’ severe damage.

Of what, then, are the Democrats so afraid? That there is a significant there there?