He volunteered
As I recall Manafort worked for no pay
At the time Trumps campaign was under assault by the RNC, Cruz and other GOPe candidates seeking to turn, steal, disqualify or otherwise nullify the results of the state primaries and the compilation of delegate votes to secure Trumps nomination
Manafort came in as an expert on legal process, a pro at the game , and he beat them and Trump got the nomination he had EARNED
Quite a few Freepers saw Manafort then as a hero.
After Trump was nominated, Manafort’s job was done and he left the campaign. Deep State was starting to rumble because Manafort was not a player in the neocon “ civil war” drums they were beating in Ukraine. He was being hired to lobby for Russia’s interests.
Which is not illegal.
And Podesta was hired for the same.
Thanks for the info