Health Bill Hinges On Blue Dogs' Vote But Few Bite So Far By DAVID HOGBERG AND SEAN HIGGINS August 14, 2009 Blue Dog Democrats are being chased by both sides in the health care debate. But the opposition may have the inside track, based on an IBD survey of these moderate-to-conservative House lawmakers. There are 256 Democrats in the House, 52 of whom are Blue Dogs. Rep. Artur Davis of Alabama, who's not a member of the pack, has said he won't support HR 3200 in its present form. That means Democrats need the support of at least 15 Blue...