It can be shared, absolutely, but not shamelessly stolen.

I guess you know the difference. if he said, I recognized her good plan, and if am elected, I will adopt the majority of her economic plan. That's called sharing.

Instead, he copied and pasted OTHER's plan/idea, and waived his huge change flag, and shouted to the mass, THAT's MY GREAT PLAN, full of vision and hope. Yes, WE CAN! You will be the judge for yourself, what behavior that is.