President Obama is expected to sign the healthcare reform bill today just two days after its passage by the House. The White House signing ceremony comes ahead of a new round of votes in the Senate, where Republicans will attempt to derail a separate package of amendments to House-backed legislation. Republicans are also planning challenges from the state level to repeal the bill. Eleven Republican state attorneys general are preparing lawsuits challenging the constitutionality of the bill for mandating people to buy health insurance.