The coalition of the anti-establishment Five Star Movement and anti-migrant the League has been high on hostile rhetoric, but it remains to be seen whether it translates into reality.
Italy succumbs to the forces of populism with voters increasingly attracted to leaders railing against the establishment.
The lifting of the ban comes three days after the 81-year-old four-times premier gave his blessing to his political ally the League to form a government without him.
Di Maio's Five Star Movement (M5S) seeks to broker a German-style "government contract" with Matteo Salvini's nationalist League party without Silvio Berlusconi, whom the M5S deems politically corrupt.
A horse-trading deal could now pave the way for discussions over who will lead the country as a Five Star Movement member was chosen as speaker of the Chamber of Deputies while a Forza Italia was voted head of the Senate.
With no faction winning a clear majority in Sunday's vote and the two rival leaders claiming victory, a hung Parliament is expected and long, fraught negotiations to form a new government lie ahead.
Italy's future seems uncertain as projections show that no single bloc or party has the support to win a majority in Parliament.
Pollsters predict that former prime minister Silvio Berlusconi and his far-right allies will emerge as the largest bloc in parliament, but fall short of a parliamentary majority.
Italy's rival political parties made a final bid for votes on Friday ahead of an election in which former prime minister Silvio Berlusconi is gunning for a leading role in shaping any new government.
An ancient gated extension of the city where left-leaning Italians once fought against Mussolini and Hitler has now become a breeding ground for right-wing populism.
Sunday’s result could leave Italians without a clear winner, complicating the country’s already uncertain political future.
Up to 470 Italian troops will be deployed in Niger to combat migration and the trafficking of people towards Europe, many of whom wash up on Italian shores.
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