From NBC's Mark Murray

Here's the first set of numbers we're releasing from our new NBC/WSJ poll, which comes out in full beginning at 6:30 pm ET:

According to the poll, more than 80% see problems with America's two-party system -- with 31% believing it's seriously broken and that America needs a third party, and with another 52% saying that it has real problems but that it can still work with some improvements.

Only 15% of Americans believe the two-party system works fairly well.

The poll was taken May 6-10, and these numbers have a margin of error of plus-minus 3.1 percentage points.