President-elect Joe Biden named Ron Klain, a lawyer and former President Barack Obama’s “Ebola czar,” to serve as his White House chief of staff. “Ron has been invaluable to me over the many years that we have worked together, including as we rescued the American economy from one of the worst downturns in our history in 2009 and later overcame a daunting public health emergency in 2014,” Biden said in a Wednesday statement distributed by his transition team. ... Klain has additionally been extremely critical of President Donald Trump’s handling of the coronavirus pandemic. In March, he gave the federal...