1: "Debate disaster spells end for Biden's 2024 bid."

2: "Kamala Harris emerges as frontrunner after Biden's exit."

3: "Public support plunges as Biden falters on debate stage."

4: "Harris showcases leadership in wake of Biden's missteps."

5: "Democratic party looks to Harris for 2024 presidential run."

6: "Biden's exit sparks speculation about Harris' future."

7: "Debate debacle ignites new hopes for Harris supporters."

8: "Harris takes control as Biden's campaign flounders."

9: "Biden's fall from grace paves way for Harris' ascent in 2024."