This goes a long way toward doing just that.
You pull their source of money and power.
Threaten to pull their money and power, and their "mechanic" is liable to pull a trigger.
There's a case to be made that, if he wanted to do this, he ought to have waited until he was in office and then just done it.
You can bet that someone made a phone call last night, and someone else is doing some preliminary planning for Cruz to have an accident or just get shot.