By MATTHEW BROWN and ELLEN KNICKMEYER Associated Press
BILLINGS, Mont. (AP) — Down to its final weeks, the Trump administration is working to push through dozens of rollbacks that could weaken century-old protections for migratory birds, expand Arctic drilling and hamstring future regulation of public health threats. The pending last-minute changes that benefit oil and gas and other industries deepen the challenges for President-elect Joe Biden, who made restoring and advancing protections for the environment, climate and public health a core piece of his campaign. Asked about the last-minute push, an Environmental Protection Administration spokesman says the agency is continuing to advance its regulatory agenda.