Be on the take
Definition 1 of 1
Pro Tip 1/3Negative Connotation
The phrase often implies wrongdoing and should be used with caution to avoid accusations. 
He seemed generous, but was he just on the take?
Pro Tip 2/3Colloquial Usage
Primarily used in informal settings; not suitable for formal documents or speeches. 
I can't trust him; he's always on the take.
Pro Tip 3/3Authority Context
Most often refers to someone in a position of power, like politicians or officers. 
Is the new councilman on the take, or is the project delay coincidental?