Nikki Haley requests Secret Service personal protection. Police have been at Nikki Haley's door several times - because of so-called "swatting" incidents.
Trump is currently focusing on the former US ambassador to the United Nations, with ever new verbal attacks. The Secret Service's main task is to protect the president and his family. However, guarding candidates can also be part of the scope of duties, subject to approval from the Department of Homeland Security. Haley's camp did not give a specific reason.