Face the Nation on the Radio 1/5

Tensions are escalating between the United States in Iran following last week's air strike that killed the country's top general Qasem Soleimani. U.S forces are sending more troops to the area, as activists in the U.S protest a possible war with Iran. Meanwhile, the 2020 race to the White House continues with a new front runner. We'll have an analysis of these stories and more on this week's "Face the Nation."

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