Updated

Spain's prime minister, whose party is facing a series of corruption cases, says most politicians aren't crooked and that his government is taking the problem seriously.

Mariano Rajoy spoke Thursday. His health minister resigned Wednesday after a judge said she benefited financially from an alleged corruption scheme that ensnared her ex-husband.

The judge has named 43 people as suspects, including three former party treasurers, in the case involving alleged illegal financing of Rajoy's Popular Party.

Opinion polls indicate voter discontent over the numerous cases of corruption may seriously erode support for Spain's main parties in elections next year. Addressing parliament on a planned law to tackle corruption and illegal party financing, Rajoy admitted many of the cases affect his party and said he had apologized.