By Phil Stewart

WASHINGTON, Oct 27 (Reuters) - The US military has spent over $47 billion so far to prosecute the war in Iran, more than 25% higher than the Defense ‌Department's estimate in July, according to Pentagon data obtained by Reuters.

The Pentagon did not ‌immediately respond to a request for comment on its estimate, which has not been shared publicly.

The disclosure about the rising ​cost of the Iran war comes as Republicans wrestle with the political fallout of the unpopular conflict ahead of the November 3 election that will determine control of Congress for the next two years.

The war's impact on global energy costs has weighed on support for Republican candidates and hurt President Donald Trump's ‌approval ratings. Trump's Republican Party holds ⁠a narrow majority in both chambers of Congress.

The Pentagon's latest estimate was tied to the operational cos...