break ranks
US /breɪk ræŋks/
UK /breɪk ræŋks/

1.
romper as fileiras, abandonar a causa comum
to fail to keep in line with the other members of a group or organization; to abandon a common cause or position
:
•
One senator decided to break ranks and vote against his party's bill.
Um senador decidiu romper as fileiras e votar contra o projeto de lei de seu partido.
•
It's difficult for employees to break ranks when management is so unified.
É difícil para os funcionários romper as fileiras quando a gerência é tão unificada.