Three House Committees now threatening subpoenas after Trump admits talking to Ukraine about Biden; Feds: U.S. soldier charged with sending bomb making instructions over social media, suggested targeting a major news network; House Democrats threaten subp

As Democrats call whistleblower complaint "tipping point" for impeaching Trump, three committees threaten subpoenas; New CNN poll: Warren surges among Iowa voters, neck-and-neck with Biden ahead of Democratic caucuses; France, Germany and UK join U.S. in blaming Iran for Saudi oil attacks as Pentagon prepares to deploy troops; Key Democrat warns U.S. deployment to Saudi Arabia could lead to full-scale armed conflict with Iran; Prince Harry, Meghan & Baby Archie begin 10-day tour of Africa; Meghan in Africa: I am here as a woman of color

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