How a Democrat in Michigan rocked the party days before the US midterms
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Haley Stevens, a sitting Democratic congresswoman, stood alongside the Republican Senate candidate Mike Rogers on Sunday.
It was a surprise appearance that saw Stevens endorse the Republican candidate in the state's crucial US Senate contest, instead of her fellow Democratic nominee Abdul El-Sayed.
BBC's Nada Tawfik was in Detroit, Michigan where the party spat unfolded.