Earlier quoted context omitted.
Why do you think that'll make drugs significantly cheaper? Drug companies are only about as profitable as other science-heavy industries.
Pharmaceutical companies have massive advertising/marketing budgets, which a nationalized drug R&D program would not need. That lowers overall costs. The R&D and manufacturing costs would also be spread across all Americans instead of only the patients who need the drugs, so the costs would be much lower for the patients as well.
Even if run by the government, you’d still need to market (educate) about new drugs.
And R&D in the big pharma firms is spread out across the entire population. That diabetes drug that sold $1B last year is paying for the cancer R&D this year.