Italy Votes in Two Minority Anti-Establishment Parties. Can They Ignore Their Grudges To Form A Coalition?

Italy: Nearly one-third of voters elected the anti-corruption Euro-skeptic 5-Star Movement founded in 2009 by comic Beppe Grillo. It is challenged with forming a coalition government with the anti-immigration League from the north that is led by Matteo Salvini, who rejects the 5-Stars. [Neither group appear to have any clear political philosophy except to say whatever is likely to get votes. If they cannot form a coalition, they will not have much ability to help or harm the nation.] [...]