plus, dorian, a slow category two. involving the carolinas as they prepare. >> congress is coming back after their long summer break. the threat that kills the momentum. back to the trump administration and the the fact that 53 people were killed in a single month of mass shootings. do people expect anything from washington anymore? all of it as "the 11th hour" gets underway on this tuesday night. >> good evening once again from our nbc news headquarters here in new york. post holiday weekend tuesday night puts us at day 957 at this trump administration. a dark ending of summer if you have seen the coverage of the latest mass shooting in texas. the boat friar that killed 34 people in california and the