No, this is very unusual. The US government taking a 10% stake in intel is very unsual.

There have been a few cases where national security has prompted the government to nationalize private institutions: the Railroads in WWI, steel mills in the korean war, CINB which was deemed a security risk by being too large a bank.

This admin has so far acted like a kleptocracy and, like, because of the Epstein files if they lose power many will go to jail, so there's a huge incentive to remain in power.

Wars are good for remaining in power. Dictatorship is good for remaining in power.

This is all very, very, very unusual in US history (except maybe when businesses tried to overthrow the government in the 30s but we don't talk about that).