Robert Casey actually said...

"It imposes no limits on further development of missile defenses."

"What happens if nuclear weapons are used? If we woke up one morning and found that 500,000 people had been killed..."

"Once nuclear weapons are used, we will be driven to take global measures to prevent it from happening again."

"The New START agreement does not restrict our ability to develop and deploy prompt conventional strike capabilities that could attack targets anywhere on the globe in an hour or less."