Amid all the intrigue and speculation over possible collusion between President Trump's campaign and Russian intelligence, big questions remain about Trump's business dealings with Russia — a mystery that might be solved if Trump released his tax returns. Trump has sent mixed signals about his business ties with wealthy Russians, saying in February he has "no dealings with Russia" or "loans with Russia," and in 2013 telling Real Estate Weekly after a meeting with potential investors in Moscow that he has "great relationship with many Russians," especially "the oligarchs." Donald Trump Jr.