US closes major crossing as caravan migrants mass at border in Mexico

US closes major crossing as caravan migrants mass at border in Mexico  Washington Post US closes Mexican border crossing, repels some migrants with tear gas  Reuters Incoming Mexican government says there is no 'Remain in Mexico' deal on migrants  USA TODAY Caravan marches toward US border in show of force  10News Migrants overwhelm Tijuana; mayor declares humanitarian crisis  Mexico News DailyFull coverage