Hillary Clinton is making an unprecedented play for the deep-red state of Utah in the final weeks of the presidential race, according to sources involved with the effort.

The Clinton campaign — which first opened a bare-bones office in Salt Lake City over the summer — will add five paid staffers to its operation here by early next week, according to a source in the state party. The campaign is also flying surrogates into Utah, and dipping into its war chest to fund advertising and organizing efforts in the state.

The campaign declined to discuss how much money it would invest in Utah, and two sources with knowledge of the strategy said the total sum would be much smaller than its spending in Arizona, another traditionally conservative state that Clinton is hoping to turn blue.

Still, the campaign believes it has a real shot in this unlikeliest of battleground states, said Marlon Marshall, Clinton’s director of state campaigns.