Previously a registered Democrat, Vernikov switched parties and became a Republican to run for office and after seeing the rise in antisemitism and what she sees as socialism in New York City.[4] She is a supporter of Donald Trump.[7] While campaigning, she said “Jews coming from the former Soviet Union are very familiar with communism and socialism, and many of us feel strongly that what today’s Democratic Party is promoting is exactly what we ran from—a place where speech was censored, where we were not allowed to practice religion, where we didn’t have freedom or economic opportunity.”[4]
Vernikov received the support of the district's former councilman Democrat Chaim Deutsch (who had been expelled from the council after pleading guilty to tax fraud), and was endorsed by Donald Trump Jr. (who made a robocall on her behalf).[8] She was elected to the City Council after defeating the Democratic nominee, Steve Saperstein. She became one of five Republicans in the 51-member council, and the first Republican to represent a portion of Brooklyn in the New York City Council since Marty Golden in 2002.[7][9]
She voted against expanding New York’s speed camera program, which issues speeding tickets when a driver exceeds the posted speed limit by 11 or more miles per hour in a school zone.[13][14] In September 2022, it was reported that Vernikov had been caught on camera for repeatedly and recklessly speeding through school zones.[14] She had received 23 camera-issued tickets since mid-2020.[14][15] She had also received 31 other non-moving violations.[14]
In August 2022, Vernikov withdrew her $5,000 donation to the Museum of Jewish Heritage for allegedly banning Florida governor Ron DeSantis from their events, though the museum denied banning anyone.[16] In December 2022, Vernikov called for the national Republican Party leadership to condemn Trump for hosting Kanye West and White Supremacist Nick Fuentes at his residence, where West supposedly made repeated antisemitic views.[17]
In March 2023, The New York Daily News published a report revealing that Vernikov sent an email blast, using her official government email account, to constituents soliciting business for $300 martial arts classes offered by Legion Self Defense; her email also included a link for her constituents to sign up.[18][19] Vernikov was the Chair of the executive board of Legion Self Defense, and her biography on the City Council website lists her as “Chair at Legion Self Defense.[18][19] The New York City Charter prohibits the use of public resources for financial gain.[19] Vernikov said that her role is not paid, but New York City ethics rules also prohibit officials from using city resources for non-city purposes.[18][19] Professor Richard Briffault, a former Chairperson of the New York City Conflicts of Interest Board, said Vernikov likely violated the government's ethics law, stating: "That’s a clear violation of conflict rules."[20][21]
On October 13, 2023, Vernikov was arrested on charges of criminal possession of a firearm after bringing a gun to a pro-Palestinian rally by Brooklyn College's campus.[22] Vernikov had accused the protestors of supporting Hamas following the start of the 2023 Israel-Hamas war, and claimed the rallies would make CUNY campuses unsafe for Jewish students.[23][24] The charges were later dropped by the Brooklyn District Attorney over a lack of proof that the gun was operable, citing a lab report that the gun was unloaded and missing its recoil spring assembly.[25]