Ahmadinejad wants to run for president. Iran’s election is a show and Ahmadinejad knows he has little chance of being approved but wants to become an opposition figure in the next stages. People such as him and Trump and Netanyahu are the opposites of whatever the free world wants to achieve.
It’s good to have populists such as him in the opposition to the free world to avoid future inclinations toward populism.
UPDATE 1:
Khamenei, Ahmadinejad, Trump, Netanyahu. It’s good to have political mindsets on the opposition side to clarify approaches and policies that should be avoided.