get in with

get in with (someone)

To be or become involved or associated with a person or group of people; to be or become popular or friendly with a person or group of people. I'm worried about Anne—I think she's gotten in with a rough crowd. Experience like that is sure to help you get in with the board of directors.
See also: get

get in with

Become involved or associated with, as in She got in with the right crowd, or These loans got me in deeper and deeper with the bank. [Late 1600s]
See also: get