In the 2016 presidential election, she did not vote for Hillary Clinton or Donald Trump, instead writing in Evan McMullin. On September 1, 2018, she delivered a eulogy at her father's funeral at Washington National Cathedral. In an emotional eulogy to her father, McCain mourned her father's passing as the "passing of American greatness, the real thing." In what was widely seen as a sharp rebuke of Donald Trump, McCain remarked: "The America of John McCain has no need to be made great again because America was always great."
