Don't pretend that all the things this administration has done have only immediate costs. Health, environment, business, trade, equality of persons, free press. The tax breaks could "take a decade" to pay for themselves, so we obviously have no clear indication yet whether that has worked or will work. Choices on energy and environment may have impacts more near term than was predicted before. I've seen the CO2 graphs and none of the data show CO2 rising before temperature. The take away should be that we have no idea what will happen because it has never happened. In fact, I don't see any historic record that shows CO2 at levels it is now.
We likely will not see a whole lot of the negative consequences from this administration's choices within the 8 years after the first day of the administration.