Allen Weisselberg, the former chief financial officer of the Trump Organization, pleaded guilty Thursday to his role in a 15-year-long tax fraud scheme, and as part of the deal he has agreed to testify against former President Donald Trump’s real estate company at trial.

In court Thursday, Weisselberg said, “Yes, your honor” when asked if he was pleading guilty of his own choice.

Weisselberg pleaded guilty to 15 felonies and admitted he failed to pay taxes on $1.7 million in income, including luxury perks, such as rent and utilities for a Manhattan apartment, leases for a pair of Mercedes-Benz cars and private school tuition for