He means the 2024 election...
Well, to quote a former president, after the 2020 election, President Trump will have a lot more flexibility. I would hope that he would immediately fire people who deserve to be fired. That might include Barr. It might include Wray. It might include Haspel.
I do not like the idea of being held hostage before the election. But after the election? Any arguments in favor of going slowly need to be tossed in the dumpster. At some point the excuses need to stop.