My proverbial trick knee is throbbing again.

It’s sending me a grim message that the federal indictment of Sen. Robert Menendez of New Jersey on corruption charges signals a hunt for others who are might be involved in the same kind of cozy relationships alleged in the 68-page indictment against the Democratic lawmaker.

http://www.politico.com/story/2015/04/robert-menendez-indicted-116581.html?hp=r1_3

You hear about these kinds of things occasionally involving senators and House members. They do favors for pals, develop relationships that raise a lot of questions — not to mention eyebrows.

Is Menendez alone in this? That trick knee of mine tells me “No. Not by a long shot.”

Menendez is the leading Democrat on the Senate Foreign Relations Committee. He’s stepping down from his leadership positions in the Senate until this matter gets resolved.

Also indicted is Dr. Solomon Melgen, a Florida ophthalmologist and longtime friend of Menendez. The indictment goes into great deal about the emails exchanged over several years between the men, suggesting alleged criminal activity, deal-making and favors.

It’s pretty salacious stuff.

I’m wondering this morning if all this will lead investigators down a lot of other paths, toward the doorsteps of other members of Congress.