Top Stories: Mark Mantovani, who narrowly lost the Democratic primary for St. Louis County Executive to incumbent Steve Stenger, says he won’t challenge the outcome.  But in a letter, he said his campaign believes there are enough outstanding and uncounted provisional ballots that could change the results.  And 85% of the topsoil in Missouri is currently rated short to very short of moisture, which is among the top three in the nation.  KMIZ reports the condition is a growing concern as the state continues to deal with one of the driest summers since 2012.