Democrats differences on public option , abortion slows down health care overhaul . Move for more Democrats troops also stirs opposition among Democratic . Support for President Lieberman , congressional Democrats slip among liberals . the White House official downplays divisions .
Democratic differences on public option , abortion slows down health care overhaul . Move for more Afghan troops also stirs opposition among Democrats . Support for President Obama , congressional Democrats slip among liberals . Democratic National Committee official downplays divisions .