omicron being the most transmissible variant yet. and public health advice suggests that every case coming in through our border into our managed isolation facilities will be the omicron variant. our immediate job right now must be to slow it down, to delay it from entering the new zealand community for as long as we possibly can. >> reporter: and covid-19 is disrupting the opening plans, the omicron variant in the pacific region, chinese authorities are doubling down on its zero covid strategy. they are mass testing its nearly 13 million residents, reimposing travel restrictions. the stakes there are high, isa. >> indeed. selina wang, thank you so much, and elliott in jerusalem. thank you. now, the former u.s. president has filed a lawsuit seeking to block an investigation into his company. we have the details just ahead.