Fifty percent of registered voters say they prefer a Democratic-controlled Congress, versus 39 percent who want Republicans in charge.

The last time Democrats both held a double-digit lead and hit 50 percent on this question in the NBC/WSJ poll was September 2008, right before the party won the White House and picked up a substantial number of House and Senate seats.

This past October, Democrats had a 7-point advantage on congressional preference, 48 percent to 41 percent.