His White House advisers considered giving him such a test to prove his fitness for a second term, but they worried it would draw new attention to his age, according to a forthcoming book.
Shabbos Kestenbaum sued Harvard over accusations that it had ignored antisemitism when he was a student. His criticism has taken him to the White House and all over the world.
Thousands of migrants from Venezuela and other countries are stranded in southern Mexico, forbidden to travel or work, but lacking the papers or money to go back to their home countries.