The first openly trans lawmaker in the US — who was hailed as a trail-blazer — has admitted to sickening child sex charges involving young kids in a daycare.

Former Democratic New Hampshire state Rep. Stacie-Marie Laughton, 41, a biological male who identifies as female, pleaded guilty to charges including sexual exploitation of children last week in a Boston federal court, WMUR reported .

Laughton now faces up to 30 years in federal prison.

Four pictures of children believed to be 3 to 5 years old were sent to Laughton by former partner, Lindsay Groves, who took the horrific images in the bathroom of the daycare where she worked in Tyngsborough, Mass., federal prosecutors said.

Laughton — who was called a history-maker following their election to the New Hampshire House in 2012 — a

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