Darren McCollester/Getty Images The Kremlin said on Wednesday preparations were underway for a meeting in Geneva next week between Russian officials and White House national security adviser John Bolton. A new round of U.S. sanctions targeting Russia prompted the Russian rouble to fall sharply. Washington had said on Tuesday Bolton would meet Russian officials as a follow-up to the Helsinki summit. MOSCOW (Reuters) - The Kremlin said on Wednesday preparations were underway for a meeting in Geneva next week between Russian officials and White House national security adviser John Bolton, the first top-level meeting since the Russian and U.S.