Candidate for President

I saw this movie a long time ago and I would like to watch it again but I cant remember the title...this is a comedy about some candidate for president who goes to visit his fake family on village to persuade people to vote for him...His ancestors were rich but he tries to convince voters that his parents were poor and I think taht he looked for Irish voters or something like that...sorry for my english....If someone knows which movie is this please tell me...thanks

His assistants were sabotaged him and they set the one crazy family,one daughter is a whore,the other is sick and constantly fainted... D