New Harvard-Harris poll just came out for February:
https://harvardharrispoll.com/wp-content/uploads/2024/02/HHP_Feb2024_KeyResults.pdf
57% of voters approve of Trumps job as President
45% approve of Biden right now
Trump up 48% to 42% over Biden an election
Trump up 42% to 35% over Biden when RFK is thrown in
67% of voters think Biden is too old to be President