If anyone fixes the economy, it will be the private sector, and it will be because government got the hell out of the way.
Those of us in the oil industry were already well on it, and the average US price of a gallon of gasoline was already down 10% from 2012 peaks by 2014, and by 2016 was only 60% of the peak price, something we (the oil industry, collectively,) did in spite of Obama, his war on fraccing, drilling, and pipelines. That alone is a huge economic improvement, because it lowers the costs to the average consumer for everything shipped, and for daily driving as well. That economic shot was already in the arm by the election. For the first time in decades, America is a net energy exporter.
Unfortunately, this administration is whole hog behind blending even more ethanol into that gasoline, making it unsuitable for many vehicles currently on the road, and less economical to produce and use.