Navy DDG-51 and DDG-1000 Destroyer Programs: Background and Issues for Congress [Updated July 28, 2020] [open pdf - 2MB]
From the Introduction: "This report presents background information and potential oversight issues for Congress on the Navy's Arleigh Burke (DDG-51) and Zumwalt (DDG-1000) class destroyer programs. The Navy's proposed FY2021 budget requests funding for the procurement of two DDG-51s. Decisions that Congress makes concerning destroyer procurement could substantially affect Navy capabilities and funding requirements, and the U.S. shipbuilding industrial base."
CRS Report for Congress, RL32109
Congressional Research Service: https://crsreports.congress.gov/