It was a technical runup today that will correct lower but there is a Chinese curveball in play. The fundamentals remain weak – look at today’s Export Sales report. And Tuesday’s WASDE will reinforce this viewpoint. But now China is an interesting side play. The Middle Kingdom is now a punching bag in the U.S. presidential campaign. According to the left-leaning Pew Research, two-thirds of Americans have a negative view toward China. This has forced Democratic challenger Joe Biden to go from pro-engagement to trying to out-tough Donald Trump on the Middle Kingdom. Trying to out-tough Donald Trump means escalating the matter into a mixed martial arts contest.  Mr. Biden’s most recent campaign ad said Donald Tru...