Slightly inspired by this question, is there a limitation on the number of pardons a president could offer, such that it could sway the outcome of the next election?
Take for example, Florida, typically a swing state, with an incarcerated population large enough to substantially sway the vote should every individual in the state be pardoned.
Florida was the determining factor in previous elections, so is there a reason that a sitting president wouldn't just pardon an entire prison population a week before an election, in order to influence the votes?
(Assuming that pardoned individuals would feel indebted to vote for their pardoner.)
Edit: Because there seems to be some misconceptions, I understand it's not a good or practical idea. Instead, what I'm asking is "Is this possible?"