John McCain actually said...

I believe we need a policy, an unequivocal policy that says we are not going to let Iran have a nuclear weapon.

They don't trust us. They don't believe we're the reliable ally we used to be.

I would hope that we would avoid the disastrous pullout we did in 2011, which had incredible consequences, as we all know.

Deterrence is not achievable simply with enhanced capabilities, your adversary must believe you intend to use it.