Trump wasn't elected on a mandate to govern differently, he was elected because the DNC is a shambling corpse of a party that is paid to lose.
Due to some decisions made to protect """free speech""" - specifically, the free speech of moneybag men - capital interests are free to puppet our two parties around with abandon. The DNC in particular saw the new fundraising environment as an opportunity to completely sell out and ignore voters, and they're now hilariously unpopular with their own base despite being nominally in opposition to one of the least popular presidents of all time.
The environment this creates is one in which electoral politics is less than useless: it is actively harmful to the exercise of power on behalf of the people. We are actually seeing unusually high levels of activism in this country, and we actually do have a lot of issues with bipartisan support from voters. People don't want data centers built in their backyard, they don't want Flock building a private Stasi, they want the child rapists running our country to be brought to justice, they want right-to-repair, etc. But all of those issues are also antipartisan: they have bipartisan opposition from politicians, because they all imperil the funding sources you need in order to get into office. Compare the things MAGA people are saying to the things Trump is saying and you'll see the split.
I think you might have also mischaracterized the ruling. The Pentagon is still allowed to sanction supply chain risks, it just has to provide an actual reason for doing so. The Trump administration (really, just Pete Hegseth) tried to sanction Anthropic with no evidence. The actual reason was simple and straightforward: Anthropic had principles other than "doing what Pete Hegseth wanted" and everyone in this administration demands absolute and unfettered loyalty. I can see the value in "governing differently" but this government isn't just "different", it's demonstrably worse even on its own terms.