nominate something right now. thank you for joining us at this hour, everybody. newsroom with brianna keilar starts right now. have a great weekend. hi there and welcome to cnn are in. thanks for joining me. i m brianna keilar. we are a little more than two hours away from president obama s last formal news conference s this momentous year and very possibly his last as president. the world would be watching anyway, but now there s added drama over russian interference in last month s elections and refusal of the president-elect to acknowledge it let alone condemn it. the nature of the operation, cnn is told, of the operation, leaking, trolling, such that the creme lim itself up and including vladimir putin it ho be involved. moscow, though, doesn t want to hear any of it. a putin spokesman says, they, meaning the u.s., should either stop talking about that or provide proof as last.