Independent presidential candidate Robert F. Kennedy, Jr.’s third request for Secret Service protection has been denied, according to a letter obtained by the Deseret News.

The letter, signed by Department of Homeland Security Secretary Alejandro Mayorkas, says that USSS protection for Kennedy is “not warranted.” The letter’s veracity was confirmed Friday night by the Kennedy campaign.

Kennedy has submitted three requests for Secret Service protection since launching his campaign in April, each with the same result. 

Federal law authorizes Secret Service protection for “major” presidential and vice presidential candidates. The DHS secretary is given authority to determine who qualifies as a “major” candidate, in consultation with the top congressional leaders in the House and Senate.