COLUMBIA — Former United Nations Ambassador Nikki Haley on Tuesday criticized former President Donald Trump for being too friendly to China during his time in office, while also warning that weak support for Ukraine would "only encourage" China to invade Taiwan. Haley, a Republican presidential candidate running against Trump, said in a speech at the American Enterprise Institute that Trump was "almost singularly focused" on the U.S.-China trade relationship but ultimately did "too little about the rest of the Chinese threat." Specifically, Haley noted that Trump failed to rally U.S. allies "against the Chinese threat" and that he had congratulated...