Well no. Lower taxes encourage investment. And severely trimming our labyrinth of regulation would also help.That sure would be a miserable time. Cutting back on taxes can't work unless business is profitable.
Say I'm thinking of a widget factory. In a low tax regime the net profits are 10%. In a high tax regime they are 3%. Under which tax scheme am I going to invest when the economy is in a slump and thus the risks are higher?
I'm predicting that the current policies lead to stagflation.
And public works? A good idea. First you pass a bill. Then you pass an appropriations bill. Then you announce the opening of the bidding process. When all the objections to the winning bid are satisfied the contract is let. Then the work starts. Then suppliers and workers start getting paid.
In the normal course of events by the time the money is flowing the economy is already on the rebound.