Russians vote for a new president Sunday,and Prime Minister Vladimir Putin is expected to win.There are five candidates on the ballot.The others include Communist Party leaderGennady Zyuganov and billionaire businessman Sergei Prokhorov.Mr. Putin was presidentfrom two thousand to two thousand eight.By law, Russian presidentscannot serve more than two terms in a row.There were reports of widespread cheatingin the elections for parliament, the Duma, last year.Those claims led to the largest street demonstrations in the country since the Soviet Union collapsed twenty years ago.Protesters say Mr. Putin controls Russiathrough a heavily controlled political system and corruption.Angela Stent is a Russia expertat Georgetown University in Washington.She was not surprised that the Prime Ministerhas blamed the United States in connection with the unrest.ANGELA STENT: "He has really resorted to a tactic that,of course, has been usedsince he became president in two thousand-- and that is to invoke the United States enemy,to blame the United States for a lot of Russian problems.And as you saw, in the Duma elections,he then blamed Hillary Clinton, Secretary Clinton,for supporting the oppositionand for trying to undermine Russian stability."President Obama has made better relationswith Russia an important part of his foreign policy.His dealings with Russian President Dmitri Medvedevled to a major arms-control agreement known as New START.It also led to increased cooperationon issues like Afghanistan, Iran and Libya.But Russia joined with China in vetoinga United Nations Security Council resolution on Syria.Sasha -- a Russian in his twentieswho did not want to use his last name-- says he is tired of Mr. Putin.He says he is voting for Mr. Prokhorov,the co-owner of the New Jersey Nets basketball team.Mr. Putin has already shown all that he can do,Sasha says, and he has enough money.But Anya -- who did not want to use her last name either-- says she is looking forwardto Mr. Putin returning to the presidency.She says he helped bring Russia out of economic collapsein the late nineteen nineties.Another Russian, Natasha, saysshe is not even going her to votebecause she knows the ruling United Russia partywill cheat and Mr. Putin will win.She says she does not think the electionswill be clean unless there are camerasin the voting stations, as Mr. Putin has promised.In the December elections,United Russia won the most seats.After criticism of the vote, Prime Minister Putinannounced a one-half-billion-dollar programto place two Web cameras at each voting center.Russia has nearly one hundred thousand polling stations.The last public-opinion survey before the electionby an independent group suggestedthat Mr. Putin will win with sixty-two to sixty-six percent.In two thousand four he was re-electedwith seventy-one percent of the vote.Mr. Medvedev is expected to become prime ministerin a new government.A win on Sunday will make Mr. Putinthe longest-serving leader in Moscowsince Josef Stalin ruled the Soviet Union.Two hundred thousand Russians have volunteeredto watch for cheating on Sunday.A group called Citizen Observerhas been training volunteers.And that's IN THE NEWS in VOA Special English.