New reports raise urgent question: Is there any line Trump won't allow Putin to cross?

(CNN)As a game of who knew what when plays out with the administration -- this time about US intelligence that Russia was allegedly paying Taliban proxies to kill US and British troops in Afghanistan -- we can't lose sight of the big picture: Putin feels increasingly empowered under this President and that's a dangerous outlook for US national security. Sam Vinograd It is important to understand whether President Donald Trump was briefed on this intel if it was, in fact, reliable intelligence. If he's lying in his denial about being briefed and he did know that our forces were at risk, Americans would have reason to assess that Russia paying for the murder of Americans isn't a redline for...