Not sure if he means top dog or leader of the pack, quipped Colbert, but either way, he is not the sharpest knife on the Christmas tree.
Taking on a more serious tone, Colbert called a new proliferation of nuclear weapons a terrifying prospect coming as it did following years of careful decommissioning.
Its like the Cold War all over again, the host said. But this time everyones on Russias side.
Check out the full segment above.
Read more: www.huffingtonpost.com