Tightening race? Not in these polls

The polls giveth, and the polls taketh away.

A new CNN poll out this morning shows the Democrats' advantage over Republicans growing just as sharply as three other polls show it shrinking. The CNN poll has the Democrats leading the Republicans by 20 percentage points in generic ballot matchups, a nine-point increase over what the same poll found just a week ago.

Meanwhile, Fox News is reporting that its newest poll shows Democrats with a 13-point edge over Republicans. No details yet, but we do know that a 13-point lead now would be a two-point increase over the 11-point advantange Democrats held in the Fox poll two weeks ago.