Iran extension prompts calls for more sanctions in U.S. Congress

WASHINGTON (Reuters) - Several U.S. Republican lawmakers insisted on Monday that the extension of nuclear talks with Iran be accompanied by increased sanctions, setting the stage for a battle with the Obama administration after their party takes full control of Congress next year.

Senators John McCain, Lindsey Graham and Kelly Ayotte, three of the party's leading foreign policy voices, said they view Iran's insistence on having any enrichment capability at all as problematic and warned that a "bad deal" would lead to a nuclear arms race in the Middle East.