Manafort was under investigation even before Trump brought him onto his campaign.
So why did the government wait until the mueller charade to "charge" him? Just to put pressure on him to turn on Trump..
I don't know what you consider "white collar" crime but this guy was swimming in corruption.
White-collar crime is a nonviolent crime committed for financial gain. According to the FBI, a key agency that investigates these offenses, "these crimes are characterized by deceit, concealment, or violation of trust." The motivation for these crimes is to obtain or avoid losing money, property, or services, or to secure a personal or business advantage.
Manifort has/had no history of violence so why the midnight raid?