Sen. Rand Paul’s expression of opposition to a $1.1 billion U.S. arms sale to Saudi Arabia — which has been brutally bombing civilian targets in Yemen using U.S.-made weapons for more than a year now — alarmed CNN’s Wolf Blitzer on Thursday afternoon.

Blitzer’s concern: That stopping the sale could result in fewer jobs for arms manufacturers.

“So for you this is a moral issue,” he told Paul during the Kentucky Republican’s appearance on CNN. “Because you know, there’s a lot of jobs at stake. Certainly if a lot of these defense contractors stop selling war planes, other sophisticated equipment to Saudi Arabia, there’s going to be a significant loss of jobs, of revenue here in the United States. That’s secondary from your standpoint?”

Paul stayed on message. “Well not only is it a moral question, its a constitutional question,” Paul said. “Our founding fathers very directly and specifically did not give the president the power to go to war. They gave it to Congress. So Congress needs to step up and this is what I’m doing.”

Watch the exchange: