Senate Democrats say they’re drawing up plans to pass healthcare reform legislation by simple majority, instead of the sixty votes needed to overcome a Republican filibuster. Under this scenario, Democrats would approve a public health insurance option through a process known as budget reconciliation. The procedure is used in cases where legislation can bear on federal spending and revenues. On Sunday, independent Senator Joe Lieberman signaled he won’t vote with Democrats on a healthcare bill. Appearing on CNN, Lieberman said a healthcare overhaul should be postponed until the economy improves.