The Situation Room with Wolf Blitzer and Pamela Brown

AG Barr: Justice Department attempting to verify Giuliani's claims about Bidens' dealings in Ukraine; 2020 Dems sharpen attacks on eve of crucial primary; Sanders and Buttigieg ask for partial recanvass in Iowa; Sen. Graham defends firing of impeachment witnesses; Trump launches fresh attacks on Senators who voted to convict on articles of impeachment; Sources: Impeachment witnesses were planning quiet exit before Trump ordered public firings; Sen. Graham defends firing of impeachment witnesses, accuses officials at CIA, FBI and DOJ of going after Trump;

To learn more about how CNN protects listener privacy, visit cnn.com/privacy

Learn more about your ad choices. Visit podcastchoices.com/adchoices

AG Barr: Justice Department attempting to verify Giuliani's claims about Bidens' dealings in Ukraine; 2020 Dems sharpen attacks on eve of crucial primary; Sanders and Buttigieg ask for partial recanvass in Iowa; Sen. Graham defends firing of impeachment witnesses; Trump launches fresh attacks on Senators who voted to convict on articles of impeachment; Sources: Impeachment witnesses were planning quiet exit before Trump ordered public firings; Sen. Graham defends firing of impeachment witnesses, accuses officials at CIA, FBI and DOJ of going after Trump;

To learn more about how CNN protects listener privacy, visit cnn.com/privacy

Impeachment witness Lieutenant Colonel Vindman fired from White House; Attorney: Vindman fired for "Telling the Truth"; Impeachment witness Bill Taylor says Lieutenant Colonel Vindman, Ambassador Yovanovitch have been "Unfairly Attacked"; Photos of Giuliani in Spain suggest Lev Parnas has more material to share with investigators; Iowa Democratic Chair: Caucus mistakes "Categorically Unacceptable"; Iowa Democratic Chair admits he didn't use failed app at the center of caucus counting controversy; Sanders: Won't ask for full recanvas of Iowa results; Deadline extended for candidates to challenge Iowa results; Sanders hits Buttigieg over wealthy donors; Trump mocks Democrats over Iowa counting troubles; Trump: Democrats "Fried" their votes in Iowa; Trump's Big Week: Acquittal, Poll Numbers, Jobs Report; Some Sanders fans use hostile tactics to drown out critics; Coronavirus infections spur cruise ship quarantines amid growing global concerns over spreading threat;

To learn more about how CNN protects listener privacy, visit cnn.com/privacy

Learn more about your ad choices. Visit podcastchoices.com/adchoices

Impeachment witness Lieutenant Colonel Vindman fired from White House; Attorney: Vindman fired for "Telling the Truth"; Impeachment witness Bill Taylor says Lieutenant Colonel Vindman, Ambassador Yovanovitch have been "Unfairly Attacked"; Photos of Giuliani in Spain suggest Lev Parnas has more material to share with investigators; Iowa Democratic Chair: Caucus mistakes "Categorically Unacceptable"; Iowa Democratic Chair admits he didn't use failed app at the center of caucus counting controversy; Sanders: Won't ask for full recanvas of Iowa results; Deadline extended for candidates to challenge Iowa results; Sanders hits Buttigieg over wealthy donors; Trump mocks Democrats over Iowa counting troubles; Trump: Democrats "Fried" their votes in Iowa; Trump's Big Week: Acquittal, Poll Numbers, Jobs Report; Some Sanders fans use hostile tactics to drown out critics; Coronavirus infections spur cruise ship quarantines amid growing global concerns over spreading threat;

To learn more about how CNN protects listener privacy, visit cnn.com/privacy

Pelosi: Trump looked "a little sedated" during state of the union, Trump: "we first went through Russia... it was all bulls--t", Trump: Schiff and Pelosi are "horrible people", Trump: Romney "ran one of the worst campaigns" in history, Source: Rudy Giuliani "not in the doghouse", Trump takes swipe at Romney, Pelosi during prayer breakfast, Pelosi: "I don't know if the president understands about prayer", Pelosi: "I don't need any lessons" from Trump about dignity, Pelosi defends tearing up the state of the union address, House judiciary chair: Bolton subpoena "likely", Trump rails against "dirty cops, liars and leakers", Trump slams Hunter Biden during verdict "celebration", Barr: investigations of 2020 candidates need DOJ approval, DNC chairman calls for Iowa recanvass; latest results show Buttigieg and Sanders in virtual tie, Sanders declares "decisive victory" in Iowa amid Buttigieg tie, Sanders campaign says $25 million raised in January, Warren cuts back on advertising to conserve cash, Yang campaign fires staffers in wake of poor Iowa showing, Hundreds of Americans quarantined as Coronavirus spreads

To learn more about how CNN protects listener privacy, visit cnn.com/privacy

Learn more about your ad choices. Visit podcastchoices.com/adchoices

Pelosi: Trump looked "a little sedated" during state of the union, Trump: "we first went through Russia... it was all bulls--t", Trump: Schiff and Pelosi are "horrible people", Trump: Romney "ran one of the worst campaigns" in history, Source: Rudy Giuliani "not in the doghouse", Trump takes swipe at Romney, Pelosi during prayer breakfast, Pelosi: "I don't know if the president understands about prayer", Pelosi: "I don't need any lessons" from Trump about dignity, Pelosi defends tearing up the state of the union address, House judiciary chair: Bolton subpoena "likely", Trump rails against "dirty cops, liars and leakers", Trump slams Hunter Biden during verdict "celebration", Barr: investigations of 2020 candidates need DOJ approval, DNC chairman calls for Iowa recanvass; latest results show Buttigieg and Sanders in virtual tie, Sanders declares "decisive victory" in Iowa amid Buttigieg tie, Sanders campaign says $25 million raised in January, Warren cuts back on advertising to conserve cash, Yang campaign fires staffers in wake of poor Iowa showing, Hundreds of Americans quarantined as Coronavirus spreads

To learn more about how CNN protects listener privacy, visit cnn.com/privacy

Trump vents fury vindictive, rambling acquittal "celebration;" Pelosi: Trump looked "a little sedated" during State of the Union; Trump: "We first went through Russia... It was all Bulls--t;" Trump: Schiff and Pelosi are "horrible" people; Trump: Romney "ran one of the worst campaigns" in history; Pelosi defends tearing up the State of the Union address; Trump, unlike Clinton, shows no contrition after verdict; Barr: Investigations of 2020 candidates needs DOJ approval; DNC Chairman calls for Iowa recanvass; Sanders declares "decisive victory" in Iowa amid Buttigieg tie; Hundreds of Americans quarantined as coronavirus spreads

To learn more about how CNN protects listener privacy, visit cnn.com/privacy

Learn more about your ad choices. Visit podcastchoices.com/adchoices

Trump vents fury vindictive, rambling acquittal "celebration;" Pelosi: Trump looked "a little sedated" during State of the Union; Trump: "We first went through Russia... It was all Bulls--t;" Trump: Schiff and Pelosi are "horrible" people; Trump: Romney "ran one of the worst campaigns" in history; Pelosi defends tearing up the State of the Union address; Trump, unlike Clinton, shows no contrition after verdict; Barr: Investigations of 2020 candidates needs DOJ approval; DNC Chairman calls for Iowa recanvass; Sanders declares "decisive victory" in Iowa amid Buttigieg tie; Hundreds of Americans quarantined as coronavirus spreads

To learn more about how CNN protects listener privacy, visit cnn.com/privacy

McConnell "surprised" and "disappointed" by Romney vote; Romney only Republican to vote to convict Trump; White House officials: Trump team caught off guard by Romney vote; Romney first U.S. Senator ever to vote to convict a president of same party in an impeachment trial; Buttigieg holds lead in Iowa as more results released; Testy State of the Union drives home intense partisan divide

To learn more about how CNN protects listener privacy, visit cnn.com/privacy

Learn more about your ad choices. Visit podcastchoices.com/adchoices

McConnell "surprised" and "disappointed" by Romney vote; Romney only Republican to vote to convict Trump; White House officials: Trump team caught off guard by Romney vote; Romney first U.S. Senator ever to vote to convict a president of same party in an impeachment trial; Buttigieg holds lead in Iowa as more results released; Testy State of the Union drives home intense partisan divide

To learn more about how CNN protects listener privacy, visit cnn.com/privacy