Volker: Ukraine Aid was linked to Biden Probe

• Ex-envoy changes past testimony

  Kurt Volker, whose prior testimony Republicans cited as evidence of no quid pro quo, now says Ukraine aid was linked to Biden probe

  Read opening statements: Morrison, Volker, Williams, Vindman

• Ex-envoy says investigation link to Bidens is 'unacceptable'

• Carl Bernstein shares how GOP secretly voiced their concerns

• Analysis: Takeaways from Tuesday's public impeachment hearings

• White House Twitter account slams decorated veteran Vindman during testimony

• Polls show impeachment hearings aren't changing much