Donald Trump Warns Orthodox Jews That Own The Chicago Cubs Not To Fund Ads Against Him The Boycott Chicago Cubs Twitter Movement Starts #BoycottChicagoCubs Tweets Generated Related Video: Communists – The Greatest Mass Murderers of all Time Says : http://www.businessinsider.com/donald-trump-ricketts-family-ads-2016-2 ‘Be careful’: Donald Trump warns billionaire Ricketts family to not fund ads against him REUTERS/Jonathan ErnstDonald