that we will uphold the principle of nato's open door. nato's door is open. remains open. and that is our commitment. >> now, secretary blinken said that president biden has been intimately involved in the process that led up to this proposal that the united states gave russia saying that the president even gave some of his own edits, demonstrating just how involved president biden is in pursuing this path of diplomacy. this comes of course though as russia continues to build up its military presence along ukraine's borders and secretary blinken was very clear in saying the united states is working to evoke incredibly high costs on russia should they go forth with any such invasion. >> really interesting reporting. thank you. so today, russia brought in a number of fighter jets to belarus, which borders ukraine.