district where's democrats are in the most trouble are clustered in the suburbs of big cities like philadelphia, columbus, ohio, orlando, denver. it's really a nationwide phenomenon where you've got moderate independent suburb an voters who swung towards the democrats in 2006 and 2008 when they were unhappy with president bush and with the war in iraq, but this year, they're angry about the economy, worried about their mortgages and their jobs, so those districts are back in play. here's a perfect example. pennsylvania's eighth district, buck's county, outside philadelphia. it's a mix of suburbs and farm country, where democrat patrick murphy, who is an iraq war veteran, beat this man in 2006, mike fitzpatrick, with less than 1% of the vote. this year, it's a rematch. they're duking it out over tax cuts, over health care, and it's expected to be one of the tightest races in the country. another perfect example, colorado's fourth district, northeast of denver, congresswoman betsy markey was swept into office in that democratic wave two years ago. she's the first democrat from this district in almost four decades. but the consen