1: "The Moment That Ended Biden's 2024 Campaign"

2: "In a surprising turn of events, Kamala Harris steps up to lead the Democratic Party."

3: "Biden's declining health leads to speculation about Harris running for president."

4: "As Harris gains popularity, Biden's support wanes."

5: "Will Harris be the next Democratic nominee for the presidential race in 2024?"

6: "With Biden out, all eyes are on Harris to take the lead."

7: "The political landscape shifts as Harris emerges as a frontrunner."

8: "Harris's rise to power signifies a new era in American politics."

9: "Is Harris the candidate to beat in 2024? Only time will tell."