General Discussion

Politifact has trump with 3% mostly true plus 7% true, for 10% true.
18% mostly false, 39% false, 19% pants on fire false. So 76% false.
10 + 76 = 86. 76 / 86 = 88.37 false.

Figures above do not include half truths, which are considered pushes, neither true nor false.
Some false issues may be the result of making an honest mistake, or being misinformed. These do not really constitute lies if they are acknowledged and retracted.
Joe Bidens politifact record was 32% true, 41% false for ~56% false. But Joe had a higher number of incorrect or honest mistakes than trumpass.
To include half truths, trumpass false = 76% of time. Biden false 41%.
Or better said Biden true 59% of time, trumpass 24%, with half truths included.]https://www.politifact.com/personalities/donald-trump/