WASHINGTON (Reuters) - The United States cannot trust Russia and must see “positive actions” by Russia before easing U.S. sanctions, Nikki Haley, U.S. President-elect Donald Trump’s nominee to be U.S. ambassador to the United Nations, said on Wednesday. “Russia is trying to show their muscle right now. It is what they do. And I think we always have to be cautious. I don’t think that we can trust them,” Haley told lawmakers during her Senate confirmation hearing. “I think that Russia has to have positive actions before we lift any sanctions on Russia.” 