Jim Cramer Says Companies Like 3M, Nucor and Caterpillar Need World Trade

Jim Cramer says big companies like 3M (MMM) - Get Report , Nucor  (NUE) - Get Report , and Caterpillar  (CAT) - Get Report  all need world trade, which is something to consider amid the political talk during this campaign season. Cramer also commented on the DNC underway in Philadelphia this week, saying the Democrats 'were pretty benign last night. They have so many irons in the fire that the last thing they seem to be doing is bashing business.'