Voters in Poland will cast ballots on Oct. 15 in a high-stakes parliamentary election that may return the ruling conservative Law and Justice (PiS) party to power for a third-straight term, following months of acrimonious campaigning that saw Warsaw's support for Ukraine emerge as one key point of contention. All 460 seats are up for grabs in Poland's lower parliamentary chamber, the Sejm, where Law and Justice and its allies now command a slim majority, and the 100 spots in the Senate, which is controlled by the opposition by a similarly thin margin. The Law and Justice government won plaudits for its outspoken pro-Kyiv stance following Russia's full-scale invasion, but critics have long accused it of weakening democracy in Poland itself.