If and when the Fed cuts funding for the additional for that ACA added, the state of Oregon will have to fund the subsidy.      Admittedly I may not have that perfectly correct, but the question seems to be if Oregon will fund coverage for low incomes that the Federal government will not support indefinitely (even under the ACA).

So are you want to have reduced health insurance for the state of Oregon?    If not, the state of Oregon will need to raise more revenue.   If I'm not mistaken this is the intent of the Fed Administration, move cost of insurance back to consumers, remove the added income on medical corporations what were helping to fund these people, and allow this sick (and disproportionately, folks 50+ to pay higher premiums.*

In theory we pay for our health care by paying for insurance early in our life, but withdrawing that money later in life (at least by statistical average).    The AHCA destroys distributed risk theory, by excluding healthy/young people.