happening. tell us what s happening. it s a big selloff. it s across the board. let s start with the dow, down 670. s&p all down. the nasdaq composite also down dramatically, 221 points. behind us a lot of conversation about trade. trade with china. will we get a deal with china? that s a big question folks are asking. concerns about statements coming out of the white house. are there conflicts between some of the president s biggest advisers? that s the questions i m hearing here at the stock exchange. we re seeing stocks that rely on china really getting hit hard. for example, caterpillar. that is the stock leading the dow lower today and dramatically so. that s because lot of caterpillar sales of heavy equipment go right into china.