Russian lawmakers on Friday set the presidential election for March 18, a move that sets in motion campaigning for a race that President Vladimir Putin is all but certain to win, reported U.S. News.

Putin declared his intention to run for another six-year term last week, ending months of speculation about motives behind the delay. He enjoys approval ratings above 80 percent, while his most visible adversary, anti-corruption crusader Alexei Navalny, has declared his intention to run but a criminal conviction bars him from doing so.

Friday's decision by the upper house of parliament, the Federation Council, will set the campaign in motion starting Monday, the day it will be published in a government daily. Candidates will then submit their documents to register, a process that will last through Feb. 2.

Putin has been in power in Russia since 2000. He served two presidential terms from 2000 to 2008 before shifting into the prime minister's seat because of term limits. As prime minister, he still called the shots while his ally, Dmitry Medvedev, served as the placeholder president.

Navalny has been convicted on two separate sets of charges largely viewed as politically motivated. Despite the implicit ban, he has mounted a grassroots campaign that reached the most remote corners of Russia to push the authorities to let him run.

Answering a question from 36-year-old celebrity TV host Ksenia Sobchak, who wants to challenge him in the election, Putin said he doesn't fear competition but emphasized that the government would thwart any attempts by radicals to destabilize Russia.

Putin said his government wouldn't let "people like Saakashvili" plunge Russia into instability. Navalny tweeted that Putin's statement "confirmed that not letting me run is a deliberate political move."

Veterans of past election campaigns — Communist chief Gennady Zyuganov, ultranationalist Vladimir Zhirinovsky and liberal Grigory Yavlinsky — have declared their intention to run but they only pose a token challenge to Putin.