On
November 6, 2018, Nez was elected
President of the Navajo Nation by a margin of 33.07% of the vote versus former President
Joe Shirley Jr. Shirley had received the endorsement of Begaye and also boasted high name recognition owing to his former tenure. As president, Nez oversaw the Navajo Nation's response to the
COVID-19 pandemic. By September 2021, the Navajo Nation's COVID-19
vaccination rate was higher than in most other parts of Arizona. Nez unsuccessfully campaigned for
reelection in 2022, losing to challenger
Buu Nygren. During the campaign, Nez endorsed the legalization of
same-sex marriage on the Navajo Nation. == U.S. national politics ==