Insurrection Day by Chris Hauty

The nationally bestselling "twisty, electrifying" (Karin Slaughter, #1 international bestselling author) Hayley Chill series continues with this novella following the former Washington, DC, intern as she faces a violent uprising at the United States Capitol.
During the course of one terrifying and chaotic day, nativist forces stage a violent uprising by storming the Capitol. Authorities are unprepared to protect the nation's elected representatives as the country's citadel of demacy is breached in what appears to be a spontaneous insurrection.

Hayley Chill, in the building for other business, does what she can to rescue a powerful senator and his staff. But in doing so, she discovers shocking evidence that the uprising had its beginnings with one of the country's long-standing overseas enemies. With no one else to trust, Hayley must prevent as many deaths as possible while also chasing down foreign operatives across the city before they abscond with what she...