5 takeaways from the impeachment inquiry testimony of Fiona Hill, former White House adviser on Russia

Fiona Hill, former National Security Council senior director for Europe and Russia, testified that former National Security Adviser John Bolton was concerned about the push to solicit help from Ukraine, according to a transcript from her impeachment inquiry deposition released Friday.

Hill added to the account emerging from testimony that President Donald Trump's personal attorney, Rudy Giuliani, was part of a team of nontraditional foreign affairs actors spearheading a back-channel Ukraine policy.

In her testimony, Hill outlined key players in a pressure campaign for Ukraine to open investigations into former Vice President Joe Biden and his son Hunter Biden, who was on the board of a Ukrainian gas company, as well as the 2016 presidential election.