TED HESSON NEARLY 3,300 migrants stranded in Mexico since January due to a U.S. border policy have been kidnapped, raped, trafficked or assaulted, according to a report by a human rights group released on Tuesday. The report, by New York-based Human Rights First, documents cases of migrants and asylum seekers stuck in Mexico since U.S. President Joe Biden took office on Jan. 20. The number of cases has jumped in recent weeks from roughly 500 such incidents logged in April to 3,300 by mid-June. Biden, a Democrat, has moved to reverse many of the restrictive immigration policies of his Republican…