June 13 : Sen. Lindsey Graham, the top Republican on the Judiciary Committee, plans to block an effort by Senate Democrats to unanimously pass a Supreme Court ethics bill Wednesday on the Senate floor.

“I will object,” Graham, R-S.C., told NBC News.

Senate Majority Whip Dick Durbin, D-Ill., who chairs the Judiciary Committee, said earlier Tuesday that he would make a unanimous consent request to pass Supreme Court ethics legislation that the panel advanced last July.

Graham's objection means the bill won't be able to move forward, because any senator can block a request.

It isn't clear whether the measure will come up for a vote under the normal process, but Senate Majority Leader Chuck Schumer, D-N.Y., said he’s considering it.