Abstract: The involvement of the youth of Northern Nigeria in politics which dates back to 1958 in the first Republic with the Northern People Congress and Northern Elements Progressive Union as regions dominate parties, has been a mixed bag of blessing. In one breath, the youths have participated the social, economic and Political development of the region, in another breath however, particularly since the return to politics in 1999 youth participation in politics has been largely violent and destructive of lives and properties. This time around they have been turned in to criminals given to drug addiction and violent expression of their political support. In view of this, this paper examines the challenges posed by those immoral behaviors of some youth participating in politics, particularly the thugs towards nation building in Nigeria in the 21st century.