Seven incumbents filed candidacies for senator. All five did eventually declare their candidacies for the 2020 presidential election. The following individuals are previously-declared candidates who had terminated their candidacies. By May 2017, there were three challengers who had announced their candidacies, including Josh Harder. The Superior Electoral Court has accepted the candidacies of all nine applicant candidates. DeVos supported the candidacies of Rick Santorum and Newt Gingrich. List of candidates who officially registered their candidacies at the Electoral Service. She worked with the National Women's Political Caucus to promote the electoral candidacies of women. Nationally, ballot access laws are the major challenge to third party candidacies. After several previous unsuccessful candidacies, Chifley was elected to parliament in 1928. The coalition also supported the candidacies of Governor Imee Marcos and Representative Pia Cayetano. California State Assemblymember Todd Gloria officially announced their candidacies. The allegations, never proved, resulted in sinking both the candidacies. Parties are as stated in their certificate of candidacies. The commission did not extend the deadline of filing of candidacies, though.