"The city of Dallas will be holding a moment of silence at 1pm ET today, and I am urging all Marylanders to stand with the people of Texas at that time. Let us mourn the deaths of those who put their lives on the line to keep Dallas safe; let us pray for the safety of the men and women in blue all across the country; and let us take time today and every day to thank our brave officers for their service and reassure them that they do not stand alone.