– President Joe Biden has endorsed Vice President Kamala Harris as the Democratic nominee for president
– Experts believe this endorsement has set the stage for a tighter and uncertain race in November
– Harris is now on track to become the Democratic nominee, but still needs to win a majority of delegates
– Experts predict that Harris would offer the Democrats a stronger chance at winning in November
– Harris has advantages over Biden in certain issues like abortion but also has weaknesses
– Harris may be better positioned to attract key demographics like women, young people, and black voters
– Markets had been pricing in a Trump victory, but Harris could give him a real challenge
– Possible front-runners for Harris’ running mate are Gov. Josh Shapiro of Pennsylvania and Sen. Mark Kelly of Arizona
– Success in the election will depend on the Democrats’ ability to unify factions within the party
– Trump has said Harris would be easier to defeat compared with Biden.