New Pew Research poll (Jan 30-Feb 2) shows tightening for the Dems and the opposite for the GOP:

Democrats
Clinton 46 (nc vs. last poll Jan 9-13)
Obama 38 (+7)

Clinton leads by 7.0% in the RCP National Average.

Republicans
McCain 42 (+13 vs. last poll Jan 9-13)
Romney 22 (+3)
Huckabee 20 (nc)
Paul 5 (-1)

McCain leads by 19.0% in the RCP National Average.

UPDATE: Some interesting results. On the Democratic side, Obama improved his standing across almost every demographic: men, women, young, old, white voters, lower income voters, etc. One of the only two groups where he lost ground, however, was among blacks. Three weeks ago Pew pegged his support with blacks at 52% (vs. 33% for Clinton), in the current survey it dipped five points to 47% (Clinton's share improved to 36%). That certainly doesn't fit with the trends we've been seeing recently.

On the Republican side, McCain made big gains across every demographic, including self-identified conservatives (+14) and White evangelical Protestants (+7).

Among those located in states that will be voting on February 5th, Obama gained 8 points in the last three weeks, while McCain gained 18.