1: "Pressure mounts for Biden to withdraw as new survey suggests Michelle Obama could defeat Trump in presidential race."

2: "Obama's popularity surges amidst calls for Biden to step aside in favor of more formidable candidate."

3: "Poll indicates Americans prefer Michelle Obama as Democratic nominee over Biden for 2024 election."

4: "Speculation swirls as supporters urge Biden to consider stepping down for Obama to challenge Trump."

5: "Survey reveals strong potential for Michelle Obama to win against Trump if she enters the race."

6: "Growing consensus suggests Biden should consider stepping aside to make way for Obama in 2024 election."

7: "Public opinion shifts in favor of Michelle Obama as more voters express preference for her over Biden."

8: "Michelle Obama emerges as frontrunner in hypothetical matchup against Trump as Biden faces pressure to withdraw."

9: "As calls for Biden to drop out intensify, new poll highlights Michelle Obama's potential to defeat Trump in election."