House Democrats will likely be forced to delay plans to unveil their final bill to overhaul the nation’s healthcare system after a group of conservative Democrats demanded significant changes to the proposed legislation. In a letter sent last night, forty members of the Blue Dog Coalition said the bill “lacks a number of elements essential to preserving what works and fixing what is broken.” House leaders had been preparing to unveil the legislation today. The conservative Democrats expressed major reservations about establishing a government-run public health insurance program. The Blue Dogs also said the bill needs more cost containment measures, protections for small businesses, and a focus on rural healthcare. Meanwhile, Rep. Lynn Woolsey (D-CA) said the eighty-member Progressive Caucus will only support a bill that includes a public plan.