Sen. John Fetterman (D., Pa.) is calling on Israel to show "no mercy" and take out Iranian supreme leader Ali Khamenei. Fetterman told the Washington Free Beacon Israel should use its successful campaign against Hezbollah in Lebanon—which culminated with the assassination of its leader, Hassan Nasrallah—as a model for how to deal with Iran. "Yes, just like Nasrallah," Fetterman replied when asked whether the Jewish state should target Khamenei. "In fact, it should have been when Israel began to