I never heard that before. Did you see it at a reliable source? It just makes sense. How else to afford the upkeep on those three not shabby houses?
There was $9 million left over after he terminated his campaign last summer.
In the report filed for 12/31/16, that had been spent down to $5,168,801.
https://www.opensecrets.org/pres16/candidate?id=N00000528