Who produced such a study? Where is this study? 90% of this campaign promises? Like tax cuts for the rich and tax cuts for the rich? Even his deporting of violent criminal illegals is warped by his deporting of also those not tallying a big list of criminal activity.
He promised to end the Ukraine war the day after the election.
He promised to lower prices on day one.
He promised nobody on Medicaid, Medicaid, or food stamps, etc, would be affected.
He promised he wouldn't pardon all those January 6th terrorists.
He promised he wouldn't start any wars.
He promised he had nothing to do with Project 2025.
If he kept 90% of his campaign promises, he must have made a lot of them, because there's a bunch right there that he didn't keep.