A quote from the Italian press agency AKI, 13 February 2008

The head of the New Italian Immigrants Party, Mustapha Mansouri, has predicted the immigrant vote will be crucial in the upcoming national elections. […] "During the (parliamentary) elections on April 13, over 200,000 new Italians will vote, while in the administrative elections, other 400,000 foreign residents could vote," said Moroccan-born Mansouri. According to the party's calculations, about 200,000 immigrants have acquired Italian citizenship in the past five years.

 
A quote from Paul Belien in The Washington Times, 11 April 2007

Pundits who predict that Western Europe is about to witness a shift to the anti-immigrant right are mistaken. This trend will be over by the end of the decade, when the impact of the immigrant vote will move European politics dramatically to the left. The right's chances of winning elections are dwindling.

See also:

The Influence of the Immigrant Vote on Belgian (and Dutch) Politics, 28 June 2007

Turning Red: Immigrants Tip the Balance in Belgian Local Elections, 9 October 2006

Dispatch from the Eurabian Front: Socialist Equilibrists Try Not to Fall, 22 March 2006

Muslim Vote Tips the Balance in Netherlands, 8 March 2006

Norwegian Left Courts Pakistani Vote, 2 August 2005