By Jason Lange and Simon LewisWASHINGTON, Aug 6 (Reuters) - Five months into the U.S. war with Iran, Americans who expect the Middle East to slide toward chaos outnumber those who see the war bringing more stability by three to one, according to a new Reuters/Ipsos poll.The six-day poll concluded on Monday, as Republican President Donald Trump again backed away from threatened "massive attacks" on Iran, underscoring uncertainty surrounding a conflict he initially predicted would bring a swift victory.

Marquette Law School poll also found 75 per cent of respondents nationwide did not believe the conflict was worth the cost.

By Jason Lange and Simon LewisWASHINGTON, Aug 6 (Reuters) - Five months into the U.S. war with Iran, Americans who expect the Middle East to slide toward chaos outnumber those who…