Question: Which Russian lawyer, political and financial activist, and politician who voiced his opposition against political corruption and coined a critical expression for the United Russia party?

Context paragraphs:
Nikolay Denin: Nikolay Vasiliyevich Denin (Russian: Николай Васильевич Денин ), born in 1958, is the governor of Bryansk Oblast in Russia.  He is a member of the United Russia party.  He won his election in 2004 by a wide margin after the incumbent governor, Yuri Lodkin was removed from the ballot by a court, just days before the vote.  Denin had previously worked as the head of a chicken processing plant and was elected to the State Duma from the eastern district of Bryansk Oblast by the United Russia party in December 2003.  In the 2012 Russian gubernatorial election, he was re-elected to the governor of Bryansk.

Alexei Navalny: Alexei Anatolievich Navalny (Russian: Алексе́й Анато́льевич Нава́льный , ] ; born June 4, 1976) is a Russian lawyer, political and financial activist, and politician.  Since 2009, he has gained prominence in Russia, and in the Russian and international media, as a critic of corruption and of Russian President Vladimir Putin.  He has organized large-scale demonstrations promoting democracy and attacking political corruption, Putin, and Putin's political allies; he has run for a political office on the same platform.  In 2012, "The Wall Street Journal" described him as "the man Vladimir Putin fears most".

Andrey Makarov (politician): Andrey Mikhailovich Makarov (Russian: Андре́й Миха́йлович Мака́ров ; born July 22, 1954, Moscow, RSFSR, USSR) is a Soviet and Russian lawyer, Russian politician, deputy of the State Duma in 1993-1999 and from 2003 to the present, member of the faction United Russia, TV presenter.  One of the authors of the first part of the Taxation in Russia.

Unity Party (South Ossetia): The Unity Party (Ossetian: Иудзинад , Georgian: ერთიანობის , Russian: Единство ; officially, the South Ossetian Republican Political Party "Unity") is a major political party with a socially conservative ideology in South Ossetia, a partially recognized Caucasian republic, considered by most countries to be a part of Georgia.  The Unity Party, founded in 2003, supported former President Eduard Kokoity, and was for a decade the largest political party in South Ossetia.  After the 2009 elections, the party held 17 out of 34 seats in South Ossetia's parliament.  It is modeled after and is closely linked to the United Russia party, with which it has signed an inter-party cooperation agreement.  The party is a winner of the 2004 and 2009 parliamentary elections.

Social Democratic Party of Russia: The Social Democratic Party of Russia (Russian: Социал-демократическая партия России , "Sotsial-demokraticheskaya partiya Rossii") was a political party founded in Russia by Mikhail Gorbachev on November 26, 2001.  "First name of party is: Social Democratic Party of Russia (United)".  It was a coalition of several social democratic parties, had approximately 12,000 members, but had no seats in the Russian State Duma.  Gorbachev resigned as party leader in May 2004 over a disagreement with party chairman Konstantin Titov who had insisted, over Gorbachev's opposition, on a deal with the pro-Kremlin United Russia Party in the previous year's general election.

Irina Yarovaya: Irina Anatoleyvna Yarovaya (Russian: Ири́на Анато́льевна Ярова́я ; born in Makiivka, Donetsk Oblast, Ukrainian SSR, October 17, 1966) née Chernyakhovskaya is a Russian political figure, a Deputy Chairman of the State Duma from United Russia Party and a member of United Russia's General Council.  She was elected to the 5th (2007) as well as the 6th (2011) and the 7th State Duma of the Russian Federation (2016).  In December 21, 2011, she became the Head of the Parliamentary Committee for Security and Anti-Corruption.

Progress Party (Russia): The Progress Party (Russian: Па́ртия Прогрéсса ; "Partiya Progressa") formerly the People’s Alliance (Russian: Наро́дный Алья́нс ; "Narodnyiy Alyans") is a political party in Russia led by the founder of the Anti-Corruption Foundation, Alexei Navalny.  It is opposed to Russian President Vladimir Putin and his United Russia party.

Yevgeny Alexeyevich Fyodorov: Yevgeny Alexeyevich Fedorov or Fyodorov (Russian: Евгений Алексеевич Фёдоров ) (born May 11, 1963 in Leningrad) is a Russian politician, deputy of the State Duma of the Federal Assembly of Russia four convocations (1993–96, 2003), chairman of the Committee on Economic Policy and Entrepreneurship of the State Duma, member of the Central Political Council of United Russia party, PhD.  State Councilor of the Russian Federation, coordinator of the organization "National Liberation Movement".

Party of crooks and thieves: Party of crooks and thieves (Russian: Партия жуликов и воров – "Partiya zhulikov i vorov", abbr.  Russian: ПЖиВ – "PZhiV") is a popular expression in Russia used to refer to the ruling United Russia party, led by Dmitry Medvedev and Vladimir Putin.  It was coined by blogger and anti-corruption activist Alexei Navalny in February 2011.

Young Guard of United Russia: The Young Guard of United Russia (Russian: "Молодая гвардия Единой России" , transliterated: "Molodaya gvardiya yedinoi rossii") is the youth wing of the United Russia party.  Founded in 2005, it uses the name of the famous Young Guard, a World War II underground organization.  A largely pro-Kremlin youth direct action group, the Young Guard claims to have 85 regional branches across Russia from the Crimea and Kaliningrad to Vladivostok on the Pacific.

Supporting paragraphs: Party of crooks and thieves Alexei Navalny
Answer: Alexei Navalny