The anti-immigrant Danish People's Party (DPP) is expected to become Denmark's largest in Sunday's EU election while their Swedish peers lag behind, highlighting different political and economic landscapes in the two countries.

Opinion polls show the DPP is backed by one in four voters in the European Parliament vote, putting them ahead of the ruling Social Democrats.

Their popularity has been boosted by fears that low-paid migrant workers are threatening Scandinavia's labour model, where collective bargaining ensures high wages even for unskilled jobs.

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