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#nbc_news #nbc #news #breaking_news #us_news #world_news #politics #nightly_news #current_events #top_stories #pop_culture #lester_holt #Trump_Participates #trump_live #trump_today #trump_news #trump_live_stream_now #donald_trump #Participates_In_Presentation #Presentation_Of_The_U.S #Space_Force_Flag #President_Trump_participates #presentation_for_the_United #United_States_Space #Space_Force_flag #signs_an_Armed #Armed_Forces_Day #Day_proclamation #Watch_as_PresidentComments: