On Saturday, a three-judge panel from the U.S. Court of Appeals for the Fifth Circuit temporarily blocked Joe Biden’s COVID vaccine mandate on businesses with more than 100 employees. White House Chief of Staff Ron Klain said he’s confident that the mandate will eventually be held up and promised that the Biden administration would fight for the mandate, which was set to take effect in January.“I’m quite confident that when this finally gets fully adjudicated, not just a temporary order, the validity of this requirement will be upheld,” Klain said on NBC’s “Meet the Press” on Sunday. “If OSHA can...