Washington (CNN) Senate Republicans launched their effort to repeal and replace President Barack Obama's landmark healthcare law early Thursday morning, approving a budget blueprint that they've dubbed the Obamacare "repeal resolution." The Senate voted 51-48 along party lines for the measure, which relies on the same budget process used seven years ago to approve the landmark healthcare law to now attempt to dismantle it. "This resolution will set the stage for true legislative relief from Obamacare that Americans have long demanded while ensuring a stable transition," Senate Budget Chairman Mike Enzi of Wyoming said, just after 1 a.m. "The Obamacare bridge is collapsing and we're sending in a rescue team."Senate Republicans voted along party lines 51-48Big questions remain on what will replace ACA
_, meanwhile, stressed the harmful impact of the law and the urgent need to do away with it.