The transition to President-elect Joe Biden’s administration remained in political limbo on Sunday, a day after tens of thousands of President Donald Trump’s supporters poured into the nation’s capital to echo his false claims of election fraud.

Biden, the Democratic former vice-president, has spent days huddled with advisers as he weighs whom to appoint to his cabinet, fields congratulatory calls from world leaders and maps out the policies he will pursue after being sworn in on Jan 20. He is expected to continue meeting with advisers in private on Sunday...