Of California's existing districts, Republicans won two Democratic-held seats.

Republicans lost one seat but gained four Democratic-held seats.

No Democratic-held seats had fallen to the Republican Party in the 2006 elections.

They won four previously Democratic-held seats to create a 19-6 Republican majority delegation representing Florida in the federal House of Representatives.

One Republican-held district and one previously Democratic-held open seat switched parties, resulting in no net change in the balance of 23 Democrats and 15 Republicans.

Republicans won one Democratic-held seat.

Republican candidates are poised to pick up about a dozen Democratic-held seats in the South, for example.

Democrats won one Republican-held seat while Republicans won two Democratic-held seats.

But Republicans have signaled that they may settle on a compromise that eliminates one Republican-held seat upstate and one Democratic-held seat in the city.

Of California's already-existing seats, Democrats won three Republican-held seats while Republicans won one Democratic-held seat.