CNN

"There is no district that is safe for Republican candidates," according to the chairman of the Democratic Congressional Campaign Committee, Representative Chris Van Hollen. He tells the Washington Post that "no one could have imagined the tsunami that just crashed on Republicans in Mississippi."

That's where a Democrat won a Republican-held congressional seat in the northern part of the state yesterday. This is a district where President Bush won by 25 points in the 2004 election, and the former Republican congressman won reelection with 66% of the vote in 2006.

It's the third special election the GOP has lost this spring, including a House race in Louisiana that had been Republican for more than three decades and the seat of former House speaker Dennis Hastert in Illinois.

Seems to have set off some warning bells.

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