In 2016, Navarro defeated incumbent Democrat Karen Weldin Stewart in the primary election for state insurance commissioner, earning 55 percent of the vote.[4] He went on to win the general election with 60 percent of the vote against Republican Jeffrey Cragg.[5] In 2020, he was reelected to a second consecutive term in office.[6]
In October 2019, a federal lawsuit filed against Navarro by Delaware Department of Insurance employee Fleur McKendell alleged that she had been a victim of workplace sexual and racial discrimination. Included in the suit are claims that Navarro inappropriately touched McKendell's cornrows and made comments about her height and weight.[9] A second lawsuit alleging harassment was filed against Navarro by an employee in January 2020.[10]