A young Spanish EU lawmaker with a huge social media following officially launched his anti-immigration party on Sunday in a further fragmentation and rightward shift in European politics.

Se Acabo La Fiesta ("The Party's Over"), led by 35-year-old Alvise Perez, shocked the political establishment by winning almost five percent of the vote and three seats at last year's European Parliament election as a fledgling faction.

On Sunday, Perez whipped up thousands of rapturous flag-waving supporters at a launch event in Madrid where he vowed to attack corruption, crime and traditional politics.

Perez vowed "the biggest deportation plan in Spain's recent history" targeted at immigrants who commit crimes and financed by freezing all foreign aid.

He lashed out at "a European Union that has bet

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