Richard Shelby actually said...

"The biggest threat to me is uncertainty."

"Is NASA experiencing any pressure from the commercial crew providers to loosen contract requirements to enable flying to the Space Station sooner?"

"The original commercial crew program contract stipulated certification for crew launches by 2017, but the reality is that the anticipated certification will now be in 2019, a slip."

"The Department of Defense is complying with congressional direction to transition national security launch activity from vehicles that use Russian-made rocket engines to those which use a domestically..."