White House says Trump's call to end Russia probe "not an order"

White House press secretary Sarah Sanders (back) speaks at a press briefing at the White House in Washington D.C., the United States, Aug. 1, 2018. Sarah Sanders said Wednesday that President Donald Trump's tweet earlier this morning urging Attorney General Jeff Sessions to shut down the ongoing Russia probe is an "opinion," not an "order." (Xinhua/Liu Jie)