Earlier quoted context omitted.
They're one of the most powerful, and one of the most scrutinized. Keeping them insulated from political pressure is incredibly important. Otherwise you end up with a monetary policy of "drastically cut rates right before the election to protect the incumbent".
> "drastically cut rates right before the election to protect the incumbent". They're not immune to political pressure. They really should be raising rates again (housing prices going up, stock market at all time highs, inflation still not under control) and aren't for exactly that reason.
That said they operate with very little political interference in recent years which is part of why the greenback has such strength. If that were to change the USD/Economy would be in a world of pain. All of a sudden those deficits would be much more crippling as people wouldn't trust the currency.