Lt. Col. Alexander Vindman, who has been smeared by right-wing figures, defended his fellow impeachment inquiry witnesses from GOP attacks.

David Holmes’ testimony knocked down the GOP argument that Trump was deeply concerned about corruption in Ukraine.

Former Attorney General Jeff Sessions once vowed to protect whistleblowers against retaliation.

Eight key witnesses will testify publicly this week, some with firsthand knowledge of Trump’s efforts to pressure Ukraine.

Following the first week of public impeachment hearings, a new poll from ABC News shows a majority of Americans want Trump impeached and removed.

Rep. Elise Stefanik (R-NY) keeps interrupting the impeachment hearings with stunts.

Trump has long claimed his July conversation with Ukrainian President Volodymyr Zelensky was ‘perfect,’ and has suggested this earlier call was ‘most important.’

Trump made things worse for himself Friday when he tweeted out an attack on the former U.S. Ambassador to Ukraine as she was testifying.

In her opening statement, Marie Yovanovitch said the successful smear campaign against her hurt all American diplomats abroad.

Rep. Devin Nunes keeps using the impeachment hearing to accuse Democrats of wanting to find nude photos of Donald Trump.

Bribery is explicitly laid out as an impeachable offense in the Constitution.

Testimony from multiple officials has largely corroborated the whistleblower’s complaint.

Security experts say Russia likely picked up Gordon Sondland’s cell phone call to Trump from Kyiv.

Congressional Republicans have been blocking meaningful House-passed gun legislation for months.

The analysis of Republicans’ bumbling and contradictory defense of Trump during Wednesday’s impeachment hearing was not kind.

Republicans spent most of Bill Taylor’s and George Kent’s hearing making incoherent and contradictory arguments.

There’s bad news out of Georgia for Donald Trump, who also faces difficult impeachment numbers in the state.

Rep. Devin Nunes (R-CA) seemed flustered when U.S. diplomat Bill Taylor debunked his conspiracy theories on Ukraine.

GOP Reps. Jim Jordan and Mark Meadows walked out of the hearing room almost as soon as testimony began.

Republicans interrupted the hearing as soon as it started, targeting the whistleblower who issued the complaint at the center of the impeachment inquiry.

Here’s what you need to know on subjects likely to be heard in the impeachment hearing.

‘His article was just a bunch of bull about himself,’ Col. Johnnie R. Prichard said about Rep. Matt Gaetz.

Fact-checking Republicans’ 18-page impeachment defense memo.

The three congressional committees leading the impeachment inquiry have released testimony from top State Department officials Catherine Croft and Christopher Anderson.

A newly released transcript shows Laura Cooper provided sworn testimony to the House committees leading the impeachment inquiry that directly contradicted Trump’s stated reason for freezing military aid to Ukraine.

Trump appears down on whistleblowers after a whistleblower complaint led to the impeachment inquiry that threatens his presidency.

The first House impeachment hearing is expected to feature damning testimony from the top U.S. diplomat to Ukraine and a top State Department official.

Trump wants Republicans to release their own transcripts from the closed-door impeachment depositions.

Sen. Lindsey Graham (R-SC) spent a lot of time defending Trump on Sunday morning.

Educators are incorporating the Trump impeachment inquiry into their lesson plans.