The phrase "breaching party" refers to a group or person who breaks or violates rules, contracts, or agreements intentionally. They disregard boundaries or agreements that were previously established. Full definition
The group was cleared by an internal Labour investigation of breaching party rules on donating to political opponents, after they assured the party the payments had been made in line with advice from the Electoral Commission. (politics.co.uk)
A member of the New Patriotic Party's Council of Elders Boniface Gambilla has revealed that the party's General Secretary Kwabena Agyepong will be the next to be expelled after party chairman Paul Afoko is suspended for breaching party rules. (ghanapoliticsonline.com)
«We will not want to go into the details so that we will not breach the party's directive or pre-empt the outcome of the party's probe.» (nigeriapoliticsonline.com)