It runs the interbank payments system. It lends the commercial banks and LFIs reserves on demand at interest.
It does not lend the government $US to spend. It cannot spend into the private sector. It cannot increase the 'money supply' whatever that is.
It can only set interest rates in compliance with Treasury diktat.
Banks do not operate under the Fractional Reserve Banking system that Wikipedia and Ewetube promote as fact.
Banks do not lend reserves except to each other.
Every new loan is new money. 100%. A bank's balance sheet increases by 100% of the loan amount.
George Romey can't get a job because he's a moron.