blunder. hundreds of thousands of students have disappeared from u.s. classrooms. so where did they go? we re on the stories throughout the hour. but first watch here. president biden: i thought it was critical there not be any doubt, none whatsoever, about u.s. support for ukraine in their war against the brutal attack by russia. the sacrifices have been far too gr great. we mourn alongside the families of those who have been lost to the brutal and unjust war. dana: president biden vowing solidarity with ukraine as he makes a dramatic visit to kiev meeting with president zelensky in a major show of support for the fight against russia. welcome to a new hour of america s newsroom, i m dana perino. good morning. bill: good morning. hope you had a good weekend. dana: not bad. bill: i m bill hemmer, good morning. to today s unannounced visit. biden spent five hours on the ground in ukraine announcing additional half billion in u.s. aid. florida governor ron desant