Trump's new healthcare plan he wants to vote on by Friday

This paragraph is on ACA Wikipedia:

From 2017 onwards, states can apply for a "waiver for state innovation" that allows them to conduct experiments that meet certain criteria.[108] To obtain a waiver, a state must pass legislation setting up an alternative health system that provides insurance at least as comprehensive and as affordable as ACA, covers at least as many residents and does not increase the federal deficit.[109] Such states can exempt states from some of ACA's central requirements, including the individual and employer mandates and the provision of an insurance exchange.[110] The state would receive compensation equal to the aggregate amount of any federal subsidies and tax credits for which its residents and employers would have been eligible under ACA plan, if they cannot be paid out due to the structure of the state plan.[108]



The revised deal as presented by Pence had two key components that the government wants to vote on by Friday:

1. Granting a waver to States from some, if not all, Obamacare insurance rules including the minimum benefits, the amount of medical expenses that insurers have to cover

Why would Trump make they are changing the ACA to include this waiver, when it's already in the original ACA???????????.?