In Congress, Lois serves as the lead Democrat on the House Appropriations National Security and Department of State Subcommittee, where she plays a pivotal role in shaping and overseeing the allocation of U.S. foreign assistance. She is also Chair Emerita of the Democratic Women's Caucus and Co-Chair of the bipartisan Women, Peace, and Security Caucus.

Lois is widely recognized for her tireless advocacy to defend reproductive freedom, protect Social Security and Medicare, and make health and family care more affordable. Her efforts have secured critical funding for projects that enhance health care, education, workforce development, clean water infrastructure, and crime prevention across her district.

In addition to her legislative work, Lois is an avid abstract painter who finds joy and inspiration in the arts. She is most proud to be the mother of Ben, a U.S. Marine veteran, and "Lolo" to her two beloved grandchildren.