Could prove to be pretty nuclear, coming out with this the day before we vote.

European Commission President Jean-Claude Juncker said on Wednesday that there would be no changes to a package of measures that EU governments agreed with Britain in February aimed at keeping London in the 28-nation bloc.

"British policymakers and British voters have to know that there will be no kind of renegotiation," Juncker said of the deal on Feb. 20 that gave Britain an explicit exemption from the founding goal of "ever closer union", offered concessions on the welfare rights of migrant workers and safeguards for the City of London financial centre.

"We have concluded a deal with the prime minister. He got the maximum he could receive and we gave the maximum we could give. So there will be no renegotiation, not on the agreement we found in February, nor as far as any kind of treaty negotiations are concerned," Juncker said.

 What else is there to say, really? We apparently got Europe's maximum, and it isn't enough.

Props to him for being honest, even though the timing is somewhat surprising. No really sure how much this matters though, as the Commission involvement in the UK's deal was extremely limited. This would hold a lot more weight if it came from the president of the Council where these negotiations actually take place.

Yeah, I have to respect him for just coming out with it. Although it may not have much weight in a technical sense, it's certainly got symbolic weight; I wouldn't be surprised if a lot of people take this as Juncker basically shitting on the prospects for reform, and it could send some mildly Eurosceptic "undecided"s to the exit.