The prediction markets on PredictIt have the Democrats winning at 52 cents, and the Republicans at 50 cents. You should expect the election to be quite close.
The volume for 2024 is also so low compared to 2020 so I don't think you can use the current 2024 predictions as evidence.
[1]: https://www.predictit.org/markets/detail/3698/Who-will-win-t...