Thats not totally true. Obama's team was all about Keynesian economics and they knew exactly how things would work. It was based on short term success and didnt pay attention to long term impact. Or they did, which makes it worse.The best economists appear to be the people that the Trump WH has employed since their GDP growth projections have been nearly spot on since 2016, whereas the Obama economic advisory team got nearly every single projection wrong and not in a good way.