President Donald Trump. | Chip Somodevilla/Getty Images  President Donald Trump called on Mexico to wage war on drug cartels Tuesday after reports emerged of American citizens being gunned down in northern Mexico, while also offering U.S. aid to the effort in a series of tweets. “This is the time for Mexico, with the help of … Continue reading Trump offers Mexico help waging war on drug cartels after murder of U.S. citizens At least nine members of a prominent Mormon family were killed in what the victims’ relatives called a “massacre” by drug cartels By Abbey Marshal