This is referring to earlier reports that I've read that says Ukraine is supposedly attempting to build their own nuke. The USA or any nuclear country would never give a nuke to Ukraine, that would be an undeniable escalation and Putin can then justify using giving nukes to... say Belarus. Then any nukes launched by Ukraine against Russia is treated as a US attack on Russian soil, then Belarus would launch against the US. The whole point of no US troops on ground is so that US and Russia is not directly at war. US nuke gifted to Ukraine is even worse than US troops on ground, as that just WW3. In contrast, nukes built by Ukrainians themselves with zero western involvement cannot be blamed on the US (although I don't doubt Putin would try to pin the blame on "The West"). Ukraine would have to complete the nuke before trump takes office.