The Trump administration is seeking to abandon a rule that sets tough standards for deadly soot pollution, arguing that the Biden administration did not have authority to set the tighter standard on pollution from tailpipes, smokestacks and other industrial sources.

FILE - In this Nov. 6, 2020, file photo then-Democratic presidential candidate former Vice President Joe Biden arrives with his running mate Sen. Kamala Harris, D-Calif., to speak in Wilmington, Del. Black policy leaders will play a pivotal role in President-elect Joe Bidens transition team, marking one of the most diverse presidential agency review teams in history. (AP Photo/Carolyn Kaster, File)DETROIT – Black policy leaders will play a pivotal role in President-elect Joe Biden’s transition, marking one of the most diverse agency review teams in history. Of the 500-plus team members announced this week, more than half are women, and Black men and women are leading more than one-quarter of the teams. “The agency review process will help lay the foundation for meeting these challenges on Day One," said Tony Allen, a transition advisory board member and president of historically Black Delaware State University.