In the FY26 omnibus bill passed by Congress and signed last month by Trump is the most aggressive federal crackdown on PBMs in history. Starting in 2028 it bans PBMs from taking a percentage cut, which is exactly what incentivized them to drive up the sticker price of your meds. It forces PBMs to pass 100% of the rebates and discounts they negotiate directly to employer health plans, stopping them from pocketing the savings. And PBMs are now mandated to provide detailed semiannual reports exposing their "spread pricing" (charging the plan more than they pay the pharmacy) and their shady practices of steering patients only to pharmacies they own
Also to do what Mark Cuban did but on a national scale, the federal govt launched TrumpRx.gov, a direct-to-consumer federal platform that completely cuts out the PBMs and insurance deductibles you're talking about , allowing people to buy dozens of the most popular meds for an average of 50% off.
Finally one benefit from the threats of tariffs has been that companies like Pfizer caved and signed landmark deals with the US to offer their drugs at “most favored nation” prices to Medicaid and directly to consumers