Poles voted on Sunday in a parliamentary election that is expected to shift power from a centrist and pro-market party to a socially conservative and somewhat Euroskeptic party that favors more welfare spending to help the poor. Opinion polls show the populist Law and Justice party holding a strong lead over Civic Platform, which has governed the country for eight years. Voting stations across this nation of 37 million people opened at 7 a.m. (0600 GMT) Sunday and are to close at 9 p.m. (2000 GMT). Exit polls will be released when polls close, with official results due Monday. Civic Platform has overseen a period of strong economic growth and extraordinary political stability even during the global financial crisis of 2008-09 and a 2010 plane crash that killed the president and dozens of other state officials. Nonetheless, many voters have grown tired of it due to scandals and a sense that many of its leaders had grown complacent and out of touch. A president backed by the party was defeated separately in May by the Law and Justice candidate, President Andrzej Duda. Opinion polls in recent days showed that Law and Justice had a strong lead over Civic Platform in this election too, but it isn't clear if the party can win enough votes to govern alone or if will need to pick a coalition partner from one of the smaller parties in the race. Another victory by Law and Justice would leave the party chance to implement a brand of politics that is strongly pro-NATO but also somewhat Euroskeptic. The party opposes adopting the euro currency and is strongly anti-migrant, positions that are expected to have a broader impact on the European Union's larger direction in those areas. Many Poles who have not benefited from the country's strong economic growth, expected at 3.5 percent this year alone, also support the party's economic program. It promises to reverse an unpopular rise in the retirement age and put more money into the pockets of struggling families with tax breaks, monthly cash bonuses for children under 18 and free medication for people over 75. It also wants to raise taxes on the mostly foreign-owned banks and big supermarkets in Poland and give tax breaks to smaller local businesses and those that adopt Polish technologies. Jaroslaw Kaczynski, the party chairman, and Beata Szydlo, the party's candidate to be prime minister, have said such changes would create greater social justice. Critics, however, slam its economic policies as irresponsible and a threat to the state's financial health. "If they win it could end up looking like Greece here," said Arkadiusz Skrodzki, a 22-year-old law student at a Friday evening rally of the ruling Civic Platform party. Echoing the view of many others in the party, Skrodzki also said he feared that Poland would become a "religious state" under the party, which strongly supports Roman Catholic values and the church. He said he fears it will try to ban in vitro fertilization and create a total ban on abortion. For now, abortion is only allowed in rare cases, for example when the mother's life is at risk or the fetus is damaged.