A glance at the main parties expected to reach the 5 percent threshold of votes for entering parliament in Poland's Sunday election:

___

CIVIC PLATFORM: The senior member in the coalition government of Prime Minister Donald Tusk, with roots in the Solidarity freedom movement of the 1980s. Stands a good chance of serving another four-year term, with nearly 30-40 percent support in opinion polls. A pro-market party with generally conservative social views. It has promised to fight for more EU funding. Under Tusk's government, Poland was the only EU nation to post economic growth during the global recession of 2009. But the government is criticized for not making deep-reaching reforms, and for failing to keep many promises from its 2007 campaign.

___

LAW AND JUSTICE: The main opposition party with roots in Solidarity as well, and led by former Prime Minister Jaroslaw Kaczynski. A socially conservative and nationalist party, it ranks second in opinion polls with 18-30 percent support. Promises to stimulate economic growth, especially in the underdeveloped eastern regions. It has pledged higher wages and more jobs at a time when unemployment is almost 12 percent. Kaczynski served as prime minister from 2006-2007, a time marked by a struggle against corruption, but also by a hard stance toward neighboring nations Germany and Russia. Kaczynski's twin brother, President Lech Kaczynski, was killed in a 2010 plane crash.

___

PALIKOT'S MOVEMENT: New left-wing and populist movement with liberal views on economics and society, led by Janusz Palikot, an entrepreneur and maverick lawmaker who split from the ruling Civic Platform last year. The party wants to eliminate the privileges and power of the Roman Catholic Church in public life. It supports gay marriage, the right to abortion and the legalization of soft drugs like marijuana.

___

DEMOCRATIC LEFT ALLIANCE: The heir to the Poland's communist party that ruled until the fall of communism in 1989. It promises higher wages and support for the poorest families, and supports the right to abortion and gay marriage. It wants women to have more say in the public life and to have equal pay with men. In foreign policy, it wants a prominent position in the EU and good ties with Western partners and Russia. Its support in opinion polls has been just under 10 percent.

___

POLISH PEOPLE'S PARTY: A farm-based party of conservative social views that has been the junior partner in Tusk's government. It promises financial support for large families, EU funds for farmers to keep food prices under control, cheap insurance for farmers and a curbing of bureaucracy. It also advocates the development of clean energy. It has the lowest support of the parties that are expected to enter parliament.