Spain's political parties are launching a two-week campaign leading up to a June 26 election aimed at breaking six months of political paralysis after a December vote shattered the nation's two traditional two-party system and politicians failed to create a governing coalition.

Campaigning begins at midnight with rallies led by acting Prime Minister Mariano Rajoy of the conservative Popular Party, Pedro Sanchez of the Socialists, Pablo Iglesias of the far-left Podemos party and Albert Rivera of the business-friendly Ciudadanos party.

Polls suggest the Popular Party will win the most votes as it did on Dec. 20 but again fall far short of the parliamentary majority it held from 2011-2015.

The surveys have indicated the Socialists and Podemos will vie for 2nd place and Ciudadanos will come in fourth.