The decision will ensure that Donald Trump will win the Republican nomination and once again face Democratic President Joe Biden in November's election.
Three of Israel's top mayors: Ronen Plot of Nof HaGalil leads with 98.5% support, followed by Ruvik Danilovich of Beer Sheva with 96.6%, and Nissim Gozlan of Be'er Yaakov with 96%.
The level of distrust and political maneuvering meant that "the government has exhausted its potential," and that it was time for an election, Liberman said.
Sharif, 72, won a parliamentary vote for premier, resuming the role he had held until August when parliament was dissolved ahead of last month's elections.
Police said they were looking into the background of the incident.
Widespread rigging both before and after election day is alleged in what is thought to be an attempt to keep jailed Prime Minister Imran Khan’s party out of power.
Council expected to pick next supreme leader in coming years.