Consider a president pardoning his own allies to shut down an investigation closing in on him. That's not hypothetical hand-wringing, that's the exact scenario the pardon power makes possible, and there's essentially no check on it. My opponent will say Congress and elections constrain abuse, but a pardon is final the moment it's signed. No court review, no override, nothing. When one person can erase federal consequences for anyone, including people acting on his behalf, that's too much unchecked power. Full stop.