a federal appeals court on friday upheld the mandate for companies with 100 workers or more. but within hours numerous groups appealed the decision to the high court. the government agency overseeing the mandate said it wouldn't enforce it before january 10th, acknowledging that many legal issues are still unresolved. and u.s. president joe biden will address public concerns about the omicron variant in a speech on tuesday, and the white house is clarifying remarks made by vice president kamala harris about mutations like the omicron and delta variants. cnn's joe johns reports. >> reporter: in a departure from the continuing message from the white house on covid, vice president kamala harris conceding in a wide-ranging interview with the "los angeles times" that the administration did not anticipate the omicron and delta variants. here's a quote from that interview. "we didn't see delta coming. i think most scientists did not upon whose advice and direction