As U.S. President Donald Trump sends mixed signals on the H-1B visa program, Amazon could find itself in a tight spot. The $2 trillion tech giant has bagged the most H-1B visa approvals each year since 2020, according to data from United States Citizenship and Immigration Services. The USCIS data includes newly issued visas and renewals. The H-1B visa allows highly skilled foreign workers to live and work in the U.S. for up to six years, after which they can apply for a green card and be eligibl...