The bad news for Democrats in the latest Daily Kos-commissioned Research 2000 poll from Delaware: Rep. Mike Castle (R) is still comfortably ahead in the open-seat Senate race. But to the extent that there's good news, it's this: former Lt. Gov. John Carney (D) appears likely to pick up Castle's House seat.

Oddly, New Castle County Executive Chris Coons (D) has lost ground since he entered the race. A Rasmussen poll earlier this week found him gaining slightly on Castle. This is a special election in November to fill the final four years of Vice President Biden's unexpired term.

Senate General Election Matchup
Castle 53 (+2 vs. last poll, 10/12-14)
Coons 35 (-4)
Und 12 (+2)

Coons would defeat 2008 nominee Christine O'Donnell 47-31; O'Donnell has said she'll still challenge Castle for the GOP nomination.

After the jump, see the numbers in the at-large House race.

House General Election Matchup
Carney 46 (+2) -- Copeland 29 (+8) -- Und 25 (-10)
Carney 50 -- Cullis 26 -- Und 24
Carney 45 -- Wharton 35 -- Und 20

Favorable Ratings
Coons 52 / 25
Castle 65 / 32
O'Donnell 33 / 39
Carney 47 / 22
Copeland 21 / 23
Cullis 10 / 18
Wharton 48 / 38

The poll 600 likely voters was conducted February 22-24, and had a margin of error of +/- 4 percent.

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