This is a market will resolve to “Yes”, if Joe Biden's approval rating by FiveThirtyEight will be equal to or less than 42.3% for the day of January 26, 2022. Otherwise, this market will resolve to “No”.

The resolution source will be FiveThirtyEight's approval rating poll aggregator,
https://projects.fivethirtyeight.com/biden-approval-rating/, specifically the approval rating indicated by the green trend line for the resolution date. Changes in the methodology by which FiveThirtyEight calculates the approval rating will have no bearing on the resolution of this market.

The resolution data will be checked on January 27, 2022 according to data published for January 26.

If for any reason the resolution source is unavailable, the resolution source will be checked every 24 hours until the rating for the resolution date is available. If the rating is still not available on the resolution source a week later or Joe Biden is not President on the resolution date, this market will resolve according to the most recent available approval rating.
Please note, that the resolution source reports the rating value to only one decimal point (e.g. 42.8%, 33.9%, etc). Thus, this is the level of precision that will be used when resolving the market.