If the game is in Nevada, it is illegal for them to rig it so that it is anything but a random shuffle from a standard deck. If the machine is manufactured by IGT or another Nevada-licensed company, it must conform to Nevada regulations when sold anywhere in the world. If it is a VLT in states such as Washington that do not allow stand-alone slots, it is NOT dealt from a fair deck and the house hold may be set to whatever is desired.
It is possible someone could rig an IGT machine after purchase but, really, there is little incentive for them to do so.
QL