How to approach PhD admissions after leaving previous PhD because my advisor tried to force me to manipulate data
You can tell the committee that you and the PI were not a good fit. That you tried to make it work for a while, but, as you reached a stage where you were ready for more research independence, it became increasingly clear that your two research styles were incompatible. For example, you had differences in opinion on which data were trustworthy enough to merit a publication. After a number of attempts to reach a common ground, you concluded that the best course of action is to start another PhD elsewhere. You are sad that you have lost some time, but overall, you were doing research and that's what matters, and you don't mind putting in a few extra years if that means you can do what you love.