Do I need to check the box "I worked outside the U.S. for an employer that wasn't the U.S. government or its agencies"?
In 2019 I worked for one and a half months for a non U.S employer in Mexico and came to the U.S in April 2019 under TN visa. I informed Mexico's Tax Administration Service about my resident change and the income I made was taxed accordingly to local tax laws on each payroll (fortnight). Since I met the criteria needed by the IRS to determine whether I qualify as a resident for tax purposes. My question is, if I need to check the box despite I paid taxes in Mexico.