Collins was removed from the leadership yesterday -- after her surprise decision to demote Bridges the night before.
She says she was acting on a complaint from a female caucus colleague about comments Bridges made in that colleague's presence five years ago.
Speaking exclusively to the Mike Hosking Breakfast, Collins says it was an inappropriate action, by a person in a position of power.
She says in the fullness of time, people will see she did the right thing for the party, knowing there would be consequences for her.
Auckland University political commentator Lara Greaves told Kate Hawkesby opinion is likely to be divided.
She says the culture of Parliament isn't comfortable for women and for many people, but on the scale of what could have been, this seems to be on the minor side.
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