July 2 (UPI) -- President Donald Trump 's decision to order the bombings of three nuclear sites in Iran has heightened concern about the United States entering another war in the Middle East. The president did not seek congressional approval before signing off on the bombing, though it has not been uncommon for presidents to make such decisions unilaterally. Democrats in the U.S. Senate sought to change that, introducing a bill to limit the president's war powers last week but it failed. The

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