thank you, john donahoe, ceo of servicenow. >>> coming up, back and forth. back and forth microsoft battling out with apple to be the most valuable company in the world by market cap. microsoft's head of cloud sits down with us next. don't go anywhere. >>> theres is no preset position >> the president's rhetoric is influential. >> he'll make sure everyone knows he's independent >> sure feels like happy holidays courtesy of the fed >>> welcome back to "squawk alley. twitter shares plunging now down 7%, down as much as 8% the worst day for the stock bringing it down to levels not seen since late october. now, there is no fundamental news out about the company today but yesterday twitter suspended a fake account impersonating vladimir putin that had gone undetected for six years and had over a million followers and a political -- politico article note that fox news has not tweeted since november 8th when they said the callout of this silent boycott, quote, would spook some investors guys, back over to you >> thank you, julia. i was wondering why it was so weak