Manafort’s Mystery Lender Steps Forward After Gaffe in Filing

Arjan “Ari” Zieger tried to keep it a secret. He worried what his investors and liberal friends might think.

At last, though, Zieger is stepping forward: He says he’s the mystery man behind a $1 million loan provided to the family of Paul Manafort, the former Trump campaign chairman who’s now sitting in federal prison.

One seven-digit loan might seem to be a footnote in the long, troubled story of Manafort, whom federal prosecutors have portrayed as a remorseless criminal.

Paul Manafort

Photographer: Andrew Harrer/Bloomberg

But Zieger’s small role adds another piece to the complex puzzle of Manafort’s financial dealings, and it underscores ...