Republican presidential hopeful Nikki Haley, U.N. ambassador under former President Donald Trump, went after her ex-boss and 2024 rival Ron DeSantis on Sunday over their refusal to say whether they want Ukraine to win its war against Russia. In recent town hall events, Trump, the favorite for the Republican presidential nomination, said that he wanted the war to end, but that he would help Ukraine and Russia negotiate a settlement. Florida Governor DeSantis, Trump's nearest rival for the Republican nomination, said recently that he supports a settlement to the war, and that he hopes fighting will end by the time...