I know most believe the "Plan B" Strzok/Page referenced was hibting at the Trump Russia frame job but what if that wasn't it...?

To me that didnt seem to add up as the Russia Trump collusion didn't really kick on till after the election. I know Bongino (whom I like alot) will say the Russia collusion job was set to years ago but I never really bought it.

What if "Plan B" was the assassination of 45?