The United States and Vietnam plan to elevate their relations as U.S. President Joe Biden visits the country from Sunday, with officials saying the focus of the talks will be semiconductors and critical minerals. The U.S. has been pushing for the upgrade for months as it sees the Southeast Asian manufacturing dynamo as a key country in its strategy to secure global supply chains from China-related risks. The overhaul may be shadowed, however, by a report on Saturday that Vietnam was in talks with Russia over a new arms supply deal that could trigger U.S. sanctions. The New York Times…