By Brenna Hughes Neghaiwi and Saeed Azhar ZURICH (Reuters) – Swiss wealth manager Julius Baer has halted any new business with wealthy Russians, two sources familiar with the bank’s operations said, as European lenders try to limit their exposure to Russia’s elite amidst tightening sanctions. Wealth managers in Europe have sought to distance themselves from the economic and political fallout of Russia’s invasion of Ukraine, and Julius Baer this week began blocking any new business with Russian clients, the people said. The European Union last week imposed sanctions blocking Russian citizens an…