They are giving a precision to two decimal places (3 in the case of Biden). In any proper report of measurement, the margin of error is contained within the last digit reported. In this case the error is two places higher than the reported values (at least). It could be even worse since there were almost certainly other candidates (Independent/Green/etc.) that got some votes as well, probably 1-3% of the total, which would suggest the margin of error is before the decimal.

In all cases this makes whoever is making the report look like an idiot to anyone who has ever had to report such numerical information.