WASHINGTON — For the Biden White House, a quartet of four female judges in Colorado encapsulates its mission when it comes to the federal judiciary.One of the judges, Charlotte Sweeney, is an openly gay woman with a background in workers’ rights. Nina Wang, an immigrant from Taiwan, is the first magistrate judge in the state to be elevated to a federal district seat. Regina Rodriguez, who is Latina and Asian American, served in a U.S. attorney’s office.Veronica Rossman, who came from the former Soviet …