The reason the indictments were brought now.

The 'Drive by Media' was having an orgasm over the weekend over the leak to CNN that Mueller is ready with his first charges. Some talking heads were chortling that Trump's campaign managers may face 20, 30, 40, 70 year prison sentences. When the indictments were unsealed the reality set in.

1. None of the charges stemmed from the 2016 election.
2. All the charges are either inconsequential or are duplicates.
3. Manafort's constitutional rights were violated in the collection of the evidence.
4. None of the charges reflect on Trump.

So, why were the indictments brought mow?

Because the Swamp was getting nervous about disclosures of the actions of the Hillary campaign. In fact, the Hillary campaign was colluding with the Russians and the British and set up elaborate schemes (like shuffling payments through law offices) to keep the activities hidden by claiming Attorney-Client privilege.