What is the difference between currency and money supply?

Currency is the system of money that you use, for example: the US uses Dollars and the UK uses Pounds. Money supply is how much currency is in circulation in the country.

From the beginning of his presidency Nixon sought to undermine anyone who he considered an enemy. People such as the man who leaked the Pentagon Papers, Daniel Ellsberg, whose psychiatrist’s office was broken into by members of the so-called ‘White House Plumbers’. This was a group set up within the White House and tasked with stopping the leak of classified information to the media.

maybe i could have brainliest lol