Trump is about as slimy as slimy gets. He's told over 2000 lies since taking office and he's made a lot of enemies within his own inner circles. One of those enemies is Steve Bannon. Bannon may be a snake but he is not the seasoned and savvy snake that Trump is. Steve Bannon is mostly a weasel with a big mouth and he is one weasel that really pissed of Trump and if that's not bad enough he was disloyal to Trump and if that's not bad enough, Bannon has enough dirt on Trump to not only get him impeached and sent to prison, Bannon has dirt on the entire Trump crime family.
Trump has very little if any honor. I will do anything to save his ass. He will also try to save the Ivanaka, Donald Jr, Eric Trump and his son in law Jarrod Kushner. Trump may try to put a hit out on Bannon. I doubt if Bannon will be shot but suspect Bannon's death will look like natural causes. Bannon would be smart of go into protective custody. Donald Trump is a very dangerous man with some very dangerous people in low and high places.
Usually with the Mafia if a don has suspicion that a contract was being taken out on him that don would order a preemptive hit. Bannon would have a tough time trying to put a hit on Trump unless he has some insiders at the Whitehouse -- perhaps a secret service agent who out of a sense of patriotism and love of country will assassinate Trump? Bannon could possibly buy somebody on the Trump staff but that is unlikely.
Bannon needs to hide even if it is in protective custody. Bannon needs to be careful what he eats of drinks and he should have a Geiger counter to protect himself from a Putin cocktail. A Putin cocktail is polonium. Polonium-210: Why is Po-210 so dangerous? Putin could see this as an opportunity of sink his claws even deeper into Trump and the Trump Whitehouse.
Related:
Steve Bannon knows groveling is his only hope now ...
Bannon may have some other major dirt on Trump and Bannon may have already informed people that is something happens to him, Trump was probably behind it.
Trump told Bannon to clam up at the House Intelligence Committee hearing and that is exactly what Sloppy Steve did but Bannon's unwillingness to cooperate caused special prosecutor Robert Mueller to issue a subpoena that will force Bannon to testify before a the grand jury. Bannon won't be able to stonewall the grand jury because he won't be allowed to have a lawyer present during his testimony and he won't be allowed to invoke the fifth amendment and if he lies he gets held in contempt of court and faces fines and prison. Bannon is FUCKED and if Trump doesn't have him killed Trump will also be FUCKED!