President-elect Biden names four White House staffers, including directors for legislative affairs and personnel

President-elect Joe Biden named four more officials Friday to White House posts – including directors overseeing congressional lobbying and personnel – as he prepares to take office Jan. 20.

Louisa Terrell, who served as special assistant for legislative affairs to President Barack Obama and as deputy chief of staff in Biden's Senate office, was named director of White House Office of Legislative Affairs.

The announcements come the same day Biden is scheduled to meet in Wilmington, Delaware, with House Speaker Nancy Pelosi, D-Calif., and Senate Minority Leader Chuck Schumer, D-N.Y.

Cathy Russell, who served eight years in the Obama administration in the White House and at the State Department, was named director of the White House Office of Presidential Personnel.

"Their dedication to overcoming the challenges facing our country today are rooted in their diverse backgrounds and experiences," Biden said in a statement. "They will serve the American people and help build back better, creating a more just, equitable, and united nation."

The appointments continue to flesh out Biden's staffing, after naming Ron Klain his incoming chief of staff last week and nine other officials Wednesday.

Biden said Thursday he would name his Treasury secretary either just before or just after Thanksgiving. Klain said other Cabinet nominees and appointees are expected this month.

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The announcements come as President Donald Trump continues to challenge the election results in federal court.

Biden's appointees are:

•Terrell, who before working in the Obama White House served as an adviser to Tom Wheeler, former chairman of the Federal Communications Commission. She worked for several years in the Senate for Biden and Sen. Cory Booker, D-N.J. She also worked as deputy general counsel at McKinsey & Co., senior director of federal policy at Yahoo! and director of public policy at Facebook.

•Russell, who served as vice chair of the Biden campaign, was a resident fellow at Harvard University's Institute of Politics. At the White House, she was deputy assistant to the president and chief of staff to second lady Jill Biden. At the State Department, Russell served as U.S. ambassador for Global Women's Issues. She earlier worked as a senior adviser on women's issues for the Senate Foreign Relations Committee, as an associate deputy attorney general at the Justice Department and as staff director for the Senate Judiciary Committee and senior counsel to Sen. Patrick Leahy, D-Vt.

•Carlos Elizondo, who was named White House social secretary. He had been a special assistant to the president and social secretary for Biden for all eight years he was vice president, the first Hispanic appointed to that position. The position plans and manages events such as visits by foreign leaders, members of Congress and business leaders. Elizondo worked in the White House and the office of U.S. Chief of Protocol during President Bill Clinton's administration.

•Mala Adiga, who was named policy director for first lady Jill Biden. Adiga has been a senior adviser to Jill Biden during the campaign. She earlier served as director for higher education and military families at the Biden Foundation. During the Obama administration, Adiga served as deputy assistant secretary of State for academic programs at the Bureau of Educational and Cultural Affairs, as chief of staff in in the Office of Global Women's Issues and as senior adviser to the ambassador-at-large. She was also counsel to the associate attorney general at the Justice Department.

This article originally appeared on USA TODAY: Biden fills White House posts; directors for legislation, personnel