After showing political clout in the 2020 election, tribal communities are hoping for more attention and money to address their long-running problems with poverty, health care and other issues.
The president-elect said he has chosen a team that prioritizes making clean energy jobs and environmental protection a cornerstone of his economic plans.
Mr. Biden also has been under pressure to make his cabinet choices more racially diverse. If confirmed, Mr. Regan is expected to bring a strong focus on racial equity to the agency.
The office, the Council on Environmental Quality, is expected to have an expanded focus on environmental justice under Ms. Mallory, an environmental lawyer.