to poorer nations tackling the climate crisis. whether we choose to fight for our shared future or not, will reverberate for generations to come. peter here in new york the president working up on strengthening those alliances tomorrow. what s he got going? that s right. at the white house, he is hosting a virtual covid summit, effort to ramp up vaccinations worldwide and increase supply of life-saving medications around the globe. peter alexander, thank you. good to have you here. president biden for the first time speaking out about the crisis at the border with new warnings of tens of thousands more haitian migrants on the way to the u.s also the vice president weighing in on those images of border patrol agents on horseback morgan chesky is in texas. reporter: tonight on the texas border, 8,500 mostly haitian migrants still inside this tent city questions outnumber answers. who stays, who goes, how much longer can they wait?