Mission:  
The Committee on Homeland Security and Governmental Affairs (HSGAC) is the Senate’s primary oversight committee with broad jurisdiction over government operations generally and the Department of Homeland Security in particular.

House counterparts: Committee on Homeland Security and Committee on Oversight and Reform

Democratic Members (Minority):
Gary Peters, Michigan – Ranking member
Maggie Hassan, New Hampshire
Jacky Rosen, Nevada
Richard Blumenthal, Connecticut
Andy Kim, New Jersey
Ruben Gallego, Arizona
Elissa Slotkin , Michigan
John Fetterman, Pennsylvania

Republican Members (Majority):
Rand Paul, Kentucky
Ron Johnson, Wisconsin
James Lankford, Oklahoma
Bernie Moreno, Ohio
Rick Scott, Florida
Josh Hawley, Missouri
Joni Ernst, Iowa
Tim Scott, South Carolina

Jurisdiction

• Examining the federal rulemaking process including regulatory review, and evaluating the effectiveness, efficiency, economic impact, legal authority, and federal role for past and proposed regulations;
• Reviewing federal contracting and procurement, including the Federal Acquisition Regulation, and the acquisition functions of the General Services Administration and the Office of the Federal Procurement Policy;
• Assessing the management, efficiency, effectiveness, and economy of agencies and departments of the government, including oversight of issues related to energy and national security;
• Examining and assessing the federal workforce and federal employee issues, including employees’ classification, compensation and benefits, and federal benefits and retirement programs;
• Evaluating and addressing the federal government’s roles and responsibilities in America’s economic competitiveness and cooperation with private industry;
• Reviewing and assessing border management and operations;
• Conducting oversight of:
  • United States Postal Service modernization and solvency;
  • United States Census Bureau; and
  • The District of Columbia, excluding appropriations, but including the judicial system.

Majority members:
Kyrsten Sinema, Arizona, Chair
Tom Carper, Delaware
Laphonza Butler, California

Minority members:
James Lankford, Oklahoma, Ranking Member
Ron Johnson, Wisconsin
Mitt Romney, Utah

Source: Government page