The Upper Bann MP Carla Lockhart has been to the forefront of Northern Ireland's politics ever since the re-emergence of the Drumcree Parade issue.
The DUP-woman has stridently defended the rights of Orangemen to march down the Garvaghy Road in the face of nationalist opposition.
She has been clear - the DUP must get Sinn Féin's Michelle O'Neill out of power over her actions in the Garvaghy protest.
The problem is, the party leader Gavin Robinson disagrees – so what happens next?
Who is Carla Lockhart, what are her options, and how does this affect unionism?
Ciarán Dunbar is joined by Professor Jon Tonge and by Belfast Telegraph reporters Claire Dickson and Andrew Madden.
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