1. Spending government money without regard to how it is financed (eventually this will trigger inflation, and lead to a return of Reagonomics and/or Tea Party finance).
2. Being hostile to China (if the Chinese stop acting as expansionist tyrants, our policy will change)
3. Not being hostile to Russia (if the Russians stop trying to take over their neighbors, out policy will change)
4. Opposing free trade (this was a Democrat idea he co-opted, it isn’t working all that well as many types of American exports are being cut back)
5. Opposing immigration (also a Democrat idea, that has great support in theory, but in practice most people are supportive of individual immigrants, and nervous only about the immigration ; given the low birthrate the only option to immigration is economic decline)
6. Twittering without checking facts first, not to mention without thinking first, and often insulting people in the process (this is the major contribution of Trump to politics, and most will see it has having led to his defeat).
7. Supporting the current regime in Israel (as the interests of most Arab state are now aligned with Israel, due to fear of Iran, this will probably last).