BEIRUT — 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.

Damascus so far appears unlikely to take such a dramatic step, but it does appear worried about Iran's reliability and the long-term impact of that country's post-election unrest. Also, its Lebanese ally Hezbollah suffered a setback when its coalition failed to win June parliament elections, beaten out by a pro-U.S. bloc.

Syrian President Bashar Assad has been expressing hopes for better ties with Washington for months. But the latest developments may make dialogue look even more attractive.