Recent election losses have led to open 'rebellion' among some party members, who are calling for a complete change of leadership.
She's the head of a 'rebellion' against the leaders of the party.
The king's army suppressed/quelled/crushed the 'rebellion'.
(..) she'll destroy the realm as we know it. Some of you are bannermen of House Tyrell. But House Tyrell is in open rebellion against the crown. With their help, the Mad King's daughter has ferried an army of savages to our shores... mindless Unsullied soldiers who will (..)2017 TvShow: Game of Thrones Title: Stormborn Season: 7 Episode 2