As House committees investigate his dealings with Ukraine, lawmakers are reaching further into President Donald Trump's administration for testimony. Today, top Russia aide Tim Morrison is scheduled to testify, while ex-national security adviser John Bolton is also said to have been summoned. But it's unclear whether Bolton, reportedly alarmed by Trump's attempt to pressure Ukraine into probing his opponents, will appear voluntarily. Meanwhile, the House will likely pass rules for public hearings today.
Will Morrison spill any beans? The first White House political appointee to testify, he could detail the "sinking feeling" he's reported to have experienced over Trump's effort to nudge Ukraine's leader into publicly committing to investigating Joe Biden.