Three more Republican senators have come out in support of an investigation into Donald Trump Jr. after a Russian oligarch bankrolled his wedding party to the tune of hundreds of thousands of dollars. Republican Sen. John Curtis of Utah called on the Senate Judiciary Committee Monday to investigate the president’s oldest son following an explosive report from ProPublica detailing how Umar Kremlev rented a private island and paid for an elaborate fireworks display the weekend of Trump Jr.’s Bahamas wedding to socialite Bettina Anderson. The couple confirmed in a statement that their “dear friend Umar”—who has close ties to Russia’s…