From the Document: "Certain observers assert that private digital currencies-- such as Bitcoin, Ethereum, and the Facebook-proposed Libra--could become widely accepted forms of payment. In response, some analysts suggest central banks should issue 'central bank digital currencies' (CBDCs) to maintain government-issued money's central economic role. Although no major central bank has issued a CBDC to date, this In Focus describes how foreign central banks and the Federal Reserve (Fed) are approaching the issue. It also examines policy issues raised by a CBDC."
CRS In Focus, IF11471
Congressional Research Service: https://crsreports.congress.gov/