Um no. Reagan was a proponent (at least in rhetoric) of supply-side econ. There has not been a prominent politician in DC aside from Ron Paul to support the Austrian school for a while now.
you are right here . actually ,the way I understand it ; supply-side econ Assumptions that economic growth can be most effectively created by lowering barriers for people to produce goods and and services , is shared by many schools of economics . they defer on how to make it happen what barrier to demolish . and what to guard against .with the exception of the Austrian school that they say the market is capable of doing that and can correct itself and therefore against any interference .