text:  Four years ago, during their last presidential debate, foreign policy barely got any airtime. But this time around, with two major wars, it's hard to avoid. And things got pretty heated. Multiple foreign diplomats said it was hard to watch. Now, under the Biden administration, of course, the U.S. has been a strong backer of Ukraine's war efforts, supplying Kiev with $175 billion in emergency support. Thursday night, Biden said the U.S. is a global unifier.