live in someone's pocket
live in (one's) pocket
1. To live or work in very close proximity to one, such that one has a great impact or influence on someone. It can be hard having to move back in with your parents and start living in their pockets again. We've been sharing an office for about two years, but we're starting to get tired of living in each other's pockets.
2. To live under one's direct control or influence, especially due to financial reasons. It's pretty obvious that our national legislators are all living in the pockets of major corporations. You'll never get justice for the crime—half the police force is living in the pocket of the mafia.