Associated Press: President Barack Obama has made a surprise stop at a family-run organic farm in Iowa as he continues a Midwest tour on jobs and the economy. The visit to MojoOrganic Farm Tuesday was the president’s second stop on the two-day, three-state tour. The farm supplies food for local schools and businesses. Touting his administration’s economic policies in a region still hit by high unemployment, Obama acknowledged in a speech earlier in the day at a wind energy plant that times are …