She took office in 2021 as the first female and youngest mayor in Beaverton history, after serving six years as city councilor.

[1][2] Before entering politics, Beaty served five years of active duty in the 1st Infantry Division of the United States Army as a radiology specialist and combat medic during the Iraq War.

[12] In 2022, Beaty joined the Bloomberg Harvard City Leadership Initiative's year-long professional development program, as part of its sixth class of 40 mayors from around the world.

[13] Prior to running for elected office, Beaty served as vice chair of Beaverton's Visioning Advisory Committee.

She defeated incumbent Ian King in a three-way primary with 55 percent of the vote and went on to win the general election uncontested.

[15] In January 2015, at age 30, she assumed office as the youngest-ever elected official in Beaverton's history,[2][1][14] and went on to serve on the city council for six years.

[20][22] In January 2021, Beaty helped to organize a COVID-19 Summit bringing together leaders from the public and private sectors to discuss making vaccines available to local residents.

[24][25][23] Another key initiative for Beaty has been the Beaverton Loop Project to improve safety for cyclists and pedestrians, for which she has sought federal funding.

[27] In December 2021, Beaty filed a complaint with the League of Oregon Cities when its executive director Mike Cully sent her a slew of abusive private messages on Twitter calling her "weak".

[28] Beaty had publicly called out Cully for announcing that he refused to tip fast food workers during the COVID-19 pandemic, and that they should "Get an education and a better job.

She cited the Beaverton Purple Pipe system[33] as a method for keeping the city primed for future growth.

[36] Ian is also a member of the armed services and was deployed to Afghanistan following Beaty's election to the Beaverton City Council in 2014.