President Donald Trump has expressed doubt over the reasons for climate change while Joe Biden has called it an "existential threat."

Joe Biden has laid out a health care plan that would build on Obamacare and President Donald Trump has vowed to eliminate it.

With Joe Biden holding his lead over President Trump in most battleground state polls, CNN's John King breaks down the latest Electoral College projections and compares it to the 2016 election.

Dr. Jorge Rodriguez tells CNN's Brianna Keilar it was irresponsible and cavalier for White House coronavirus task force member Dr. Scott Atlas to push herd immunity in an intverview last week.

President Donald Trump claimed on a campaign call that people are tired of hearing about coronavirus, which has killed more than 215,000 Americans, and criticized Dr. Anthony Fauci as a "disaster" who has been around for "500 years."

President Donald Trump advocates an "America First" mentality, at times putting him at odds with allies. Joe Biden promotes strengthening global alliances to tackle threats like climate change and authoritarianism.

President Donald Trump has pushed for parents to have more options when it comes to sending their kids to public school. Joe Biden wants to focus on funding for struggling public schools to make education more equal.

President Donald Trump ordered the Justice Department to ban bump stocks after the 2017 Las Vegas shooting and has focused on mental health as an underlying issue. Joe Biden has pledged to ban so-called assault weapons and take on the NRA and gun manufacturers.

Joe Biden has put an emphasis on the middle class in his economic plan, pledging to repeal President Donald Trump's tax cuts for the wealthy. Trump's major economic achievement as president was the 2017 tax cut, and he often points to the stock market as an economic indicator.

Joe Biden has questioned the reopening strategy around the country and called for an emphasis on testing. President Donald Trump has pushed for businesses and schools to open and has downplayed the importance of testing.

Americans are voting early at a pace never seen before, with many waiting in hours-long lines to cast their ballot before Election Day.

Joe Biden supports a path to citizenship for undocumented immigrants, while President Donald Trump has pledged to criminally prosecute and deport people who cross the border illegally.

CNN's John Avlon analyzes growing concern over possible voter intimidation by armed groups and how President Trump's rhetoric may fuel their motives.

Due to Covid-19 restrictions, Joseph and Eve Loreth were only allowed to see each other through a window for more than 200 days. The tearful moment they were reunited for the first time was caught on video.

American singer and songwriter Billie Eilish shared a video of her Nike sneakers, sparking a debate over whether or not they're white and pink, or white and mint green.

You might see people sharing the hashtag #SavetheChildren on social media. But much of this online activity has nothing to do with the respected and real Save the Children charity. Its name has been hijacked by followers of the QAnon conspiracy theory.

Reid Hoffman, co-founder of LinkedIn, says ensuring a calm and civil election is "expressing care for our country," and shouldn't be viewed as political.

Anika Chebrolu, a 14-year-old from Frisco, Texas, has won the 2020 3M Young Scientist Challenge -- and a $25,000 prize -- for a discovery that could provide a potential therapy to Covid-19. CNN affiliate KTVT has more.

Michigan Governor Gretchen Whitmer responds to the heated rhetoric used by President Trump at a rally only days after a plot to kidnap her was exposed.

This couple from Canada wanted friends and family to be able to join in on their special day, despite the coronavirus pandemic and a border in the way.

China's economy expanded 4.9% in the July-to-September quarter, while the rest of the world continues to struggle with the coronavirus crisis. CNN's Selina Wang reports.