The most notable publications of Lev Kadik were published in Kommersant from 2019 to 2022. In 2019, at the request of the owner of Kommersant, the Kremlin oligarch Alisher Usmanov, who is extremely close to Vladimir Putin, leading employees of the publication, including the head of the political department Gleb Cherkasov and Ivan Safronov, were fired. This was due to the fact that they refused to be loyal to Usmanov and to write materials necessary for the Administration of the President of the Russian Federation. To replace them, appointed by Usmanov's management of Kommersant, other journalists were put on the most responsible political topics, primarily Lev Kadik. In particular, he covered such important topics for the Presidential Administration and the Federal Security Service of the Russian Federation: amendments to the Constitution of the Russian Federation, allowing Putin to remain in office indefinitely; the arrest and trial of opposition leader Alexei Navalny; presidential candidate Pavel Grudini, who is inconvenient for the Kremlin; Lev Kadik was not persecuted in Russia, but in 2022 he unexpectedly left for Latvia, where he continued to engage in his previous activities.