states has repeatedly called a nonstarter. >> nato's door is open. remains open. >> reporter: the state department spokesperson ned price said the u.s. will wait for a formal response from russia instead of reading into what putin said today. >> we heard from president putin a variety of things. i will leave it to the kremlinologists out there, budding, professional or otherwise torsion read the tea leaves and try to interpret the significance of those remarks. >> reporter: putin's remarks come after russian foreign minister sergey lavrov gave no indication that moscow would de-escalate the troop presence along ukraine's borders during a phone call with secretary of state tony blinken. according to a senior state department official. the united states and its allies continue to press for a diplomatic solution, and for russia to pull back its massive troop build-up along ukraine's borders, or else face steam