Donald Trump's family business is being accused of operating a tax fraud scheme and its chief financial officer is now also facing criminal charges.

The new indictment doesn't name Mr Trump personally, but the investigation still has a way to go, and it's only one of several ongoing probes into the company.

So how much trouble is the former president in?

Could a successful prosecution land him in prison, or is it likely to amount to little more than a speeding fine?

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David Cay Johnston, Pulitzer Prize-winning investigative reporter, co-founder and editor of DCReport.org