Russian anti-war politician Boris Nadezhdin was detained by police on Monday morning at a station west of Moscow, according to his social media account. The reason for his arrest remains unknown. Nadezhdin's press secretary confirmed his detention, stating he was taken from his home.

Nadezhdin's arrest follows his designation as a "foreign agent" by the Russian justice ministry last week. This label, accompanied by accusations of spreading false information about the government and calling for unauthorized rallies, would have prevented him from participating in the upcoming September Duma elections. Despite these challenges, Nadezhdin expressed his intention to continue his political activities, stating, "I will continue to live and fight." He added, "This is unlikely to change anything in my political biography. I will continue to run for the State Duma and collect signatures."

Earlier in 2024, Nadezhdin attempted to run as a presidential candidate on an anti-war platform, advocating for an end to the conflict in Ukraine. He told the BBC that he had the support of "dozens of millions of people" who opposed what he described as Russia's "track of authoritarianism and militarism." Nadezhdin stated that his first priority if elected president would be to "stop the conflict with Ukraine, and then to restore normal relations between Russia and the Western community."

Despite his anti-war stance, Nadezhdin's criticism of President Vladimir Putin was described as measured. Some observers speculated that the Kremlin might have permitted him to run to create an appearance of electoral fairness. However, the Russian electoral commission ultimately barred him from standing in the presidential election, citing flaws in over 15% of the submitted signatures. Nadezhdin contested the decision, but was unable to participate, as were other credible opposition figures.

Following the presidential election on March 18, 2024, Putin secured a fifth term. Constitutional amendments passed in 2020 allow Putin to remain in power until 2036. Nadezhdin had previously commented on the political climate, noting that Russians were "beginning to understand that there is a direct connection between their everyday problems, like healthcare, food prices, problems with internet and the politics of Vladimir Putin." The current political landscape in Russia is largely controlled by the Kremlin, with opposition figures often facing imprisonment, exile, or death.