I haven’t seen specifics for Trumpcare. But if it is possible to work Trumpcare by simply getting rid of stumbling-block federal regulations that the feds cannot justify under the Commerce Clause (1.8.3) then lets try that.
Otherwise, Trump is going to find out from us patriots that he first needs to successfully lead the states to ratify an appropriate amendment to the Constitution, as Obama should have done with Obamacare, before establishing TrumpCare.
The central feature of the Trump plan is to remove the restriction on buying insurance from out-of-state companies that are not approved by the state insurance commissioners. A clear violation of the 10th Amendment.