MANILA, Philippines — United States Ambassador-designate to the Philippines Lee Marc Lipton is expected to arrive in Manila in June to start his tour of duty.Foreign Affairs Secretary Ma. Theresa Lazaro said she looks forward to a "vibrant" chapter of Philippines-United States partnership as she met with Lipton in Washington D.C."It was a pleasure meeting US Ambassador-designate to the Philippines Lee Marc Lipton in Washington DC ahead of his ar…