You’ve made some good points. These are reasons to keep the fight going - - so our children and grandkids don’t have to deal with a corrupted country.
I suspect Issa knew these emails existed and that is why he never offered Lois Lerner immunity.
It may take much, much longer to overcome the coverup, but since Issa knows Cummings and other democrats and other IRS personnel are involved, he’s going for the big criminal charges play to damage the Democrat party long term.
This is where the IRS scandal is most significant. Every American who pays taxes can understand this type of corruption. Actually associating the weaponization of the IRS with the Democrat Party could be devastating. I’m sure that is what Issa is thinking.