For the WP,
Cillizza parses a "Diageo/Hotline poll in which the sample was asked whether they would support a generic Democrat or a generic Republican for president if the election were held today....Forty-seven percent chose the Democratic candidate while 29 percent went with the Republican....
an 18-point differential."
Details:
Among Republicans, 71 percent opted for the generic GOP candidate while seven percent chose the Democrat; 21 percent either said neither (6 percent) or that they didn't know (15 percent). Compare that to the 87 percent of Democrats who said they would back a generic candidate from their own party and the 4 percent who said they would support a generic Republican. Just 9 percent either chose neither or didn't know.
Clearly, Democrats are strongly unified at the moment while Republicans are something short of energized (about their crop of candidates and/or the party's prospects) heading into 2008.The 16-point discrepancy between self-identifying Democrats and Republicans who say they would back a candidate from their own party is a testament to this disparity of intensity.
As significantly, the generic Democratic candidate enjoyed a 35 percent to 17 percent edge in the survey among independents.....
http://blog.washingtonpost.com/thefix/2007/04/parsing_the_polls_is_the_white_1.html#more