In 2020, Rogers mounted a successful primary challenge against incumbent State Senator Sylvia Allen and went on to defeat the Democratic nominee in the general election.

[1] As a candidate and member of the Arizona Senate, Rogers has courted controversy with inflammatory rhetoric, support for Donald Trump and his attempts to overturn the 2020 election, and her embrace of white nationalism including various antisemitic and racist conspiracy theories.

In March 2022, Rogers received a rare censure by the Republican-controlled Arizona Senate for her remarks to the white nationalist America First Political Action Conference, and was the subject of an ethics investigation after suggesting that the 2022 Buffalo shooting was a U.S. government false flag operation.

[10] During her primary campaign, Rogers was the sole candidate to support Donald Trump's proposal to build a wall on the border with Mexico.

[11] In 2018, Rogers ran again and won the Republican nomination for the 1st congressional district, but lost to incumbent Democratic congressman Tom O'Halleran.

[12] In 2020, Rogers ran for the Arizona Senate in the 6th legislative district, which encompasses Rim Country and the White Mountains, and extends from Flagstaff to the Arizona–New Mexico border.

[15] During the campaign, Rogers made few public appearances, did not participate in debates, and avoided taking positions on local political issues, such as forest management, education funding, or Arizona's response to the COVID-19 pandemic.

[21][22] In March 2021, during the COVID-19 pandemic in Arizona, Rogers sponsored legislation to declare gun shops "essential businesses" permitted to remain open during emergencies; the bill passed the Senate on a 16–14 party-line vote.

[25] In January 2021, Rogers introduced legislation to create a special license plate and charitable fund for veterans of overseas conflicts, which passed after being signed into law by the governor.

[32] Rogers also sponsored SB1280, a bill that seeks to prevent individuals who are registered sex offenders from serving on school district governing boards.

[33] On December 16, 2024, Wendy Rogers made a second attempt to designate SR 260 as Donald J. Trump Highway with Arizona Senate Concurrent Memorial 1001.

[39][40][41] On July 4, 2022, Donald Glenn Brown, a former Tucson middle school music teacher, sent a death threat to a store in Show Low where Rogers was attending the city's Independence Day parade.

He pled guilty in April 2023 and was sentenced on June 6, 2023, to two and a half years in prison by Navajo County Superior Court Judge Joseph Clark.

[47] Cook, term-limited from seeking re-election to the Arizona House, claimed that he decided to enter the race after Rogers retweeted a video containing sexually-explicit content from Hunter Biden's laptop.

[54][52] In a 4–3 decision issued in February 2022, the Arizona Supreme Court ruled that Rogers's ad was protected by the First Amendment, and that allowing the case to proceed would "inevitably and intolerably chill political speech."

[68] Later, Rogers falsely claimed that the January 6 U.S. Capitol Attack, in which a mob of Trump supporters attempted to halt the electoral vote count, had been conducted by Antifa groups.

[67][69] Rogers was a strong supporter of Arizona Senate Republicans' 2021 Maricopa County presidential ballot audit and similar efforts in other states to decertify the election results, gaining significant attention on social media.

[70][71] Following criticism of the audit by the Maricopa County Board of Supervisors, Rogers called for their imprisonment along with that of unnamed electronic voting machine company executives.

[73] In 2018, Rogers claimed to be a "charter member" of the Oath Keepers, a militia group known for its promotion of conspiracy theories and violent, extremist, and separatist rhetoric.

[75] In June 2021, Rogers appeared on the streaming channel TruNews on a show hosted by Christian nationalist commentator Lauren Witzke.

TruNews, along with its founder Rick Wiles, is known for its promotion of antisemitic conspiracy theories, including a claim Trump's impeachment was orchestrated by "seditious Jews" and that Americans are "oppressed by Jewish tyrants".

[80] Rogers has embraced white nationalism and promoted various antisemitic conspiracy theories about Ukrainian president Volodymyr Zelenskyy, George Soros, and the Rothschild family.

[88] The final censure resolution (which passed 24–3) criticized Rogers for "encouraging violence" and threatening the "political destruction of those who disagree with her views".