Americans For Prosperity Action, an advocacy organization backed by billionaire Charles Koch and his network of wealthy conservatives supporting Nikki Haley in the Republican presidential primary, will no longer spend money on behalf of her campaign.

Following Haley’s defeat in the early primary states – including her home state of South Carolina, on Saturday night – AFP has decided to refocus its mission on United States Senate and House races, according to an internal staff email sent by Americans For Prosperity CEO Emily Seidel and reviewed by ABC News.