MSNBC host Lawrence O'Donnell apologized on his "Last Word" show Wednesday night as he retracted an unverified report that directly tied President Trump's finances to Russia, which aired the previous night.

The big picture: After Deutsche Bank said in response to a court order Tuesday that it has tax returns House Democrats are seeking in subpoenas for financial details on Trump and his family, O'Donnell claimed on his show that a single source told him the bank's documents showed Russian oligarchs had co-signed a loan application for Trump.