MIAMI (Reuters) - For Republican presidential candidate Michele Bachmann, Hurricane Irene and last week's earthquake in the eastern United States were a message from God that Washington needs to change its policies. Even as Irene was beginning its raking course up the East Coast over the weekend, which killed 21 people and caused widespread flooding and power outages, Bachmann told senior citizens in Poinciana, Florida, on Saturday that the hurricane was an "act of God" that Washington should heed. The Minnesota congresswoman, .. recalled Washington and the east had already felt a 5.8 magnitude earthquake on Tuesday. "Washington, D.C., you'd...