WASHINGTON (AP) — A bipartisan group of four senators has plans to visit Taiwan , Japan and South Korea in the coming days on a trip meant to bolster U.S. alliances seen as important to countering China’s dominance in Asia. Sen. Jeanne Shaheen of New Hampshire, the top Democrat on the Senate Foreign Relations Committee, announced the trip Saturday. She will be joined by Sens. John Curtis, R-Utah, Thom Tillis, R-N.C., and Jacky Rosen, D-Nev. Their visits to Taipei, Tokyo and Seoul are coming