The following is attributable to Spokesperson Matthew Miller:

Secretary Blinken spoke today with Polish Foreign Minister Zbigniew Rau to discuss the ongoing situation in Russia.  Secretary Blinken welcomed Poland’s sustained assistance to Ukraine and its people and underscored that U.S. support to Ukraine will not change.  The Secretary emphasized the United States will remain in close coordination with Allies and partners as the situation continues to develop.

Original source can be found here.