Has Anyone Crunched the Data to Determine If There Is a Difference Between Vaccine Injury Rates During. . .

. . .the time Trump was still in office, and since Biden has taken over?

It has occurred to me that many of the people who were going to take the vaccine did so while Trump was still in office. Does this fact have anything to do with why they are pushing boosters, and why they are now saying that the vaccine has failed to protect from the Delta variant. Are the globalists and Chicoms uncertain of those previously administered vaccines and looking for a do-over?