I'm growing more and more concerned for the President's safety, too @DCPatriot All one has to do is read the titles of threads right here in Briefer City (and they're the tip of the iceberg). Can't help but wonder just what the opposition's final solution may be.
I believe political assassination attempts were more common years ago. (not all inclusive)
1963 Kennedy, 1968 Robt. Kennedy, MLK, 1972ish Geo. Wallace, twice on Gerald Ford, Reagan, etc.
Perhaps many attempts these days, are foiled, and kept out of the media.