Assassinating Trump likely won't happen because it would spark a revolution on the spot.  Nuke or 9/11 are likely being controlled by them losing their intelligence network control, Trump can just hijack the TV broadcasts and name the attackers live on air and it's over.  That's if the US military let's it happen.  In addition like 9/11 and Pearl Harbor it would ignite pride and bloodlust in the American public and it create a crystalnacht event.  So that leaves the banks and economy, but it's amusing because I suspect that it's a sacrifice play.  They are burning their cash and trying to loss leader themselves back into the white house.  But if they don't get Biden ( seems to be their candidate ) into the white house, they eat the loss.  If they are cut off another 4 years, then Trump might actually cripple them economically.