CNN legal analyst Carrie Cordero calls CNN senior political commentator Rick Santorum's defense of President Donald Trump insane during a discussion about the impeachment hearings.

CNN chief legal analyst Jeffrey Toobin shares why he thinks the talking points used by Republicans on the House Intelligence Committee during the impeachment hearings are not working anymore.

David Holmes, a diplomat at the US embassy in Ukraine, told lawmakers last week he'd "never seen anything" like the call Gordon Sondland placed to President Donald Trump at a restaurant in Kiev, Ukraine. CNN's Phil Mattingly reports.

President Donald Trump tweeted interest in providing a written testimony in order to defend himself against impeachment. CNN's Anderson Cooper explains why this is unlikely.

As the public impeachment hearings into President Donald Trump ramp up, so do Trump's attacks on witnesses, labeling some witnesses "never Trumpers" and threatening to remove them from White House positions, sources say. CNN's Anderson Cooper reports.

Sandy Phillips, whose daughter was killed in the Aurora movie theater shooting seven years ago, speaks to CNN's Anderson Cooper about the grief and trauma victims of gun violence go through.

CNN's Gary Tuchman spoke with a group of undecided voters in Wisconsin to get their reactions following the first public impeachment hearing.

Former White House counsel John Dean says he believes the first two witnesses in the impeachment hearings of President Donald Trump have more evidence against the president than Congress had against former President Richard Nixon.

Former UN Ambassador Nikki Haley said that in all of her interactions with President Trump, he was a truthful person. CNN's Anderson Cooper breaks down her claim on 'The Ridiculist.'

CNN's Anderson Cooper fact-checks Republican's talking points ahead of public hearings held by the House as part of an impeachment inquiry into President Donald Trump.