First off: it's not Congress that controls the money supply, it's the Fed. They're independent.
> The price for that has yet to be paid.
What price is that? Inflation? Japan's M2 has risen a lot, and it hasn't seen any for decades:
* https://fred.stlouisfed.org/series/MYAGM2JPM189S
* https://fred.stlouisfed.org/series/FPCPITOTLZGJPN
Japan's interest rate has been below 1% since April 1995:
* https://fred.stlouisfed.org/series/INTDSRJPM193N
From 2002 to 2006 it was 0.1%.
The equation for inflation is: M x V = P x Q
Everyone talks about "printing money" (money supply: M) with the Fed, but no one seems to pay attention to velocity (V). Which has dropped off a cliff:
* https://fred.stlouisfed.org/series/M2V
The Austrian, Milton Friedman Monetarists have been squawking about inflation for ten years:
> We believe the Federal Reserve's large-scale asset purchase plan (so-called "quantitative easing") should be reconsidered and discontinued. We do not believe such a plan is necessary or advisable under current circumstances. The planned asset purchases risk currency debasement and inflation, and we do not think they will achieve the Fed's objective of promoting employment.
* https://economics21.org/html/open-letter-ben-bernanke-287.ht...
Meanwhile the Keynesians have been saying it wouldn't be a problem. Both sides made predictions, results are in, the experiment is over:
Start listening to Keynesians.