First lady fashion: Melania Trump wears pink to Washington wedding

Melania Trump's latest look: a pink J. Mendel gown.

The first lady stepped out in the pleated number by Gilles Mandel, Trump's press secretary Stephanie Grisham confirms, to attend the wedding of Treasury Secretary Steven Mnuchin and actress Louise Linton in Washington, D.C.

Here's a peek at the back of the dress.

Meanwhile, second lady Karen Pence wore a navy Marchesa Notte gown. How do we know? We once tried on the same dress and considered borrowing it from Rent the Runway.