Defeating Russian President Vladimir Putin in Ukraine is the "best deterrence" for keeping Chinese President Xi Jinping out of Taiwan, House Foreign Affairs Committee Chair Michael McCaul, who traveled to Taiwan this weekend, said in an interview that aired Sunday. "I've talked to the prime ministers and the presidents of Japan, South Korea, and Taiwan, and what's happening in Ukraine will determine what happens in Taiwan and the Pacific," the Texas Republican said on NBC's "Meet the Press." "I believe the best deterrence to Chairman Xi is a failure for Putin in Ukraine." Weapons for Taiwan are also necessary to...