Every action they are taking is going to increase support of Imran khan.
Till now, they don't know how to take back what they have lost.
Lets disqualify Imran khan and put him in jail, he will come back with even more support after five years.
If they kill him, the country will not survive. The pashtoon belt will join Baloch separatists and they will be fully supported by ttp and our cunning enemy. Afghan talibs aren't happy either.
There is no way to stop him. I think they will choose putting Imran khan in jail for 5 years over losing the country. But what after that? Sure Pakistan will economically go down the drain in 5 years, but that will be the last time for puppets and their handlers.