Powerline blog is pointing out the same thing, that this is one of many liberal threats to assassinate the President that have occured over the past months.
They also ask if even one DemonRAT, even one time has ever come out and denounced these statements.
Guess what...not one of them ever has. gasp!
I don't remember any rightwing radio hosts or columnists or standarbearers or individuals that had fantasies that only a person possessed by the ghost of John Wilkes Booth would have.