President Biden is delivering a national address on the Omicron variant today. The White House will make 500 million at-home COVID-19 test kits available for free, shipped to the homes of anyone who requests one. The Biden administration is also planning to set up 20,000 new testing sites nationwide. On Monday, the White House said a staffer who was recently with President Biden aboard Air Force One tested positive for coronavirus; Biden has reportedly since tested negative.