The Trump administration is cutting flights at 40 airports nationwide by 4% and will gradually increase the reduction to 10% by next Friday if the shutdown continues, according to an FAA order. CNN's Audie Cornish spoke to a retired air traffic controller who says controllers are being used as pawns in the shutdown negotiation. | CNN

Join CNN, Wednesday, for The Inauguration of Joe Biden. Watch special, live coverage of this historic event in unprecedented times. All-day coverage starts Wednesday. | CNN

As surges in Covid-19 cases force new lockdowns and stricter guidelines, delayed vaccine rollouts are drawing criticism and concern. CNN’s Sam Kiley, Selina Wang, and Stefano Pozzebon report. | CNN