Syrians walk at the old city in Damascus, Syria, Friday July 3, 2009. Syria's leader sent a July 4 message full of praise to President Barack Obama on Friday and invited him to visit Syria, the latest signs Damascus is hedging its bets in Mideast politics, warming up to its rival the United States at a time when its longtime ally Iran is in turmoil. The United States and its Arab allies have been hoping to pull Syria out of the fold of Iran and Islamic militant groups in the region.