Former Vice President Joe Biden answers questions from reporters after announcing his 2020 presidential campaign.

CNN's Arlette Saenz takes a look at the life and career of former Vice President Joe Biden as he announces he will run in the 2020 election.

The 2020 Democratic field has continued to grow, and that's changed things near the top of our power rankings. CNN's Chris Cillizza explains.

President Donald Trump tweeted in response to Democratic candidate Joe Biden's announcement that he is entering the 2020 presidential race.

Former Vice President Joe Biden announced his decision to run for president for a third time, answering one of the biggest outstanding questions about the makeup of the 2020 race. But, will Barack Obama formally endorse him?

Former Vice President Joe Biden -- one of the remaining high-profile holdouts in a crowded field of Democrats vying to be their party's nominee -- has announced his fourth run for the presidency in a video.

CNN's Jeanne Moos reports on presidential flubs with the Queen of England as President Donald Trump preps for his second encounter with Queen Elizabeth II.

CNN's Chris Cuomo's daughter Carolina ("ChaCha") makes a cameo appearance in her dad's nightly conversation with Don Lemon.

CNN's Chris Cuomo responds to President Donald Trump's Twitter attack against the media, namely a tweet that criticized the anchor's show.

Retired Army Lt. Col. Ralph Peters talks to CNN's Anderson Cooper about the future of the United States if President Donald Trump loses in 2020.

A Washington state senator has drawn the ire of nurses after remarks she made suggesting that nurses in smaller hospitals "probably play cards for a considerable amount of the day."

Kim Jong Un's bodyguards stay on their feet as the North Korean leader travels to meet with Russian President Vladimir Putin. CNN's Jeanne Moos peeks under the red carpet.

CNN's Randi Kaye sits down with a group of Democratic voters to discuss former Vice President Joe Biden entering the 2020 presidential race.

David Glosser, the uncle of White House senior adviser Stephen Miller, says if his family had not immigrated to the United States when they did then none of them would be here today.

Rep. Jerry Nadler tells Jake Tapper that Stephen Miller should testify on the White House plan to release undocumented immigrants into sanctuary cities.

CNN's Chris Cuomo analyzes several instances in which Rep. Steve King (R-IA) and President Donald Trump have used Christian references in controversial ways.

Deutsche Bank has started providing financial records to New York state's attorney general in response to a subpoena for documents related to loans made to President Donald Trump and his business, according to a person familiar with the production.

CNN's Anderson Cooper tackles President Trump's "bizarre vernacular" and ego in his "Ridiculust" segment.

CNN's Anderson Cooper questions whether President Donald Trump would leave the United States vulnerable to attack by a foreign adversary to protect his ego, following new reporting that members of Trump's Cabinet and White House officials have been discouraged to discuss Russian election int…

CNN's Kyung Lah takes a look at the group of diverse women Democratic presidential candidate Kamala Harris has hired to help run her 2020 campaign.

New York Times op-ed columnist Thomas Friedman joins CNN's Wolf Blitzer on The Situation Room, where he blasts President Donald Trump and the Republican party and stresses the importance of voter turn out in the 2020 presidential election.

After President Donald Trump said he was the most transparent president in the country's history; CNN's Kate Bolduan lists the ways Trump and his administration are not.

CNN's John King pokes holes in talk-radio host Rush Limbaugh's claims, which Donald Trump later echoed, that Hillary Clinton is to blame for the investigation into President Trump and should be indicted.

The New York Times reports that acting White House chief of staff Mick Mulvaney warned former Homeland Security Secretary Kirstjen Nielsen not to bring up concerns about potential Russian interference in the upcoming 2020 election because it "wasn't a great subject." CNN's Kaitlan Collins reports.

CNN's Jake Tapper questions why President Donald Trump and the White House aren't addressing the ongoing threat of continued Russian interference in the US election process.

Economist Stephen Moore, who President Donald Trump nominated for a spot on the Federal Reserve Board, says his critics are "pulling a Kavanaugh" on him following major backlash over his past sexist comments. CNN's Andrew Kaczynski has the latest.

The Wall Street Journal has obtained audio from a secretly recorded phone call of President Donald Trump's former fixer and lawyer Michael Cohen walking back part of his guilty plea.

Ahead of Joe Biden's 2020 presidential campaign announcement, CNN's John King looks at the electability of former the Vice President and some of the states Democrats need to turn blue to challenge President Trump.

President Donald Trump's pick for the Federal Reserve Stephen Moore defended his qualifications in an interview with CNN's Erin Burnett.

In a 1998 interview with Investor's Business Daily, William Barr says he was "disturbed" that then Attorney General Janet Reno did not defend independent counsel Ken Starr from "hatchet jobs" during the Whitewater investigation.

CNN's Anderson Cooper blasts White House senior adviser Jared Kushner after he suggested special counsel Robert Mueller's investigation was more harmful to the US than Russian meddling in the 2016 election.

CNN's John Avlon breaks down how a misstatement from US Commerce Secretary Wilbur Ross led the census fight all the way to the Supreme Court.

Rep. Steve King (R-IA), who was stripped of his House committee assignments following racist remarks he made in an interview with The New York Times, told constituents he can relate to the suffering of Jesus Christ.

The Iowa Legislature's longest-serving Republican announced that because of President Donald Trump, he will be joining the Democratic Party, calling Trump "a poor example for the nation and particularly for our children."

While House Speaker Nancy Pelosi has seemed to tamp down plans for impeachment, some Democratic presidential candidates sharpened their arguments for moving forward with impeachment proceedings at CNN's town halls. CNN's Manu Raju reports.

CNN's Chris Cuomo and Don Lemon discuss President Trump's Twitter war against the media, notably a tweet aimed at CNN and Cuomo.

During a CNN town hall, a student whose family fled Soviet Russia asked Democratic presidential candidate Bernie Sanders about the "failures of socialism" around the world.

President Donald Trump will make his first state visit to the United Kingdom in June, Buckingham Palace said, more than two years after an invitation was first extended. CNN's Max Foster reports.

At a CNN Town Hall, 2020 Democratic presidential candidate Mayor Pete Buttigieg addresses his controversial decision to demote South Bend, Indiana's first black police chief. CNN's Drew Griffin reports.

Rep. Jackie Speier (D-CA) told CNN's Wolf Blitzer that it is important for Congress to move forward deliberately, "not politically" in terms of impeaching President Donald Trump.

Supreme Court justices were deeply divided over whether the Trump administration can add a citizenship question to the 2020 census, with the conservative justices showing signs that they were inclined to vote in favor of allowing the question according to CNN's Ariane de Vogue.

The House Oversight Committee could hold a contempt vote for a former White House aide who is refusing to honor a subpoena under the instruction of the White House.

During a CNN-sponsored town hall, Sen. Bernie Sanders showed that his presidential candidacy will be about more than questioning the Mueller report and pushing impeachment proceedings against Donald Trump.

CNN's John Avlon looks at some of the bigger takeaways from the Mueller report that you may have missed.

Criminal defense attorney Danny Cevallos breaks down everything you need to know about presidential impeachment.