Chris Murphy actually said...

"NATO ought to have that discussion in advance so then when it happens, NATO has an answer ready."

"But is article 5 still a sufficient protection for countries along Russia's border?"

"Aside from the significant defensive enhancement against any new 'Crimea,' this step would signal Moscow that the United States and NATO are going to defend alliance territory."

"we are more likely to gain his attention if we stop 'self-deterring' ourselves."