Twitter says won’t let candidates claim victory themselves

Twitter Inc. and Facebook Inc. reaffirmed plans to flag tweets and posts — including those of presidential candidates — who claim a premature U.S. election victory, as worries persist that a clear result won’t emerge till well after November 3.

Twitter said Monday — reiterating previously announced policy — that it will require any tweet from some accounts declaring victory to cite either an announcement from state election officials, or a public projection from at least two authoritative, national news outlets that make independent election calls, the company said in updated guidelines to its election policies on Monday. It selected the seven acceptable race-calling outlets.