Charles Kushner, shown in 2022, is the U.S. ambassador to France and father of Jared Kushner, President Trump’s son-in-law and a former White House advisor. France has summoned the U.S. ambassador to Paris after the diplomat, Charles Kushner, wrote a letter to French President Emmanuel Macron accusing the country of not doing enough to combat antisemitism. France’s Foreign Ministry issued a statement Sunday announcing that it had summoned Kushner to appear Monday at the French Ministry for Europe and Foreign Affairs and that his allegations “are unacceptable.” The White House did not immediately respond to a message seeking comment. State...