I was reading this thread and had to get off because I was so angry at the attacks on the local police! On Free Republic!! It is the job of the secret service to protect president Trump. And from what I understand, they did try to alert the SS!
They didn’t just try to notify SS thy did! More than once....they were suspecious of this guy from when he went through the security check and refused entrance.....they lost him when he went outside the perimter.....
But a guy videoing the crowd has the shooter scouting the ouside of the Arg building after that....but did’t know it until he got home and viewed his video....the officials have it now.