Russia Ukraine war, page-227235

If you care to look, there is plenty of evidence.

CIA collaborated with the nazis long after WW2 was over.
CIA trained, armed and financed nazis all throughout Europe after WW2 in order to influence European politics and squeeze out communist and socialist ideas.

CIA's relationship with Ukrainian nazicollaborators goes back to mid 1940's. In fact US intelligence agencies collaborated with anyone that opposed first Communism and then the Russian government. Including Islamic extremists.

And it is no secret that Ukrainian nazis played a vital role in the events of 2014 in Ukraine.

More fun reading on how nazis and nazi collaborators became CIA's favourite pet.