ROME—Italy’s 5-Star Movement struggled on Feb. 10 to quell its deep divisions over Mario Draghi’s drive to form a government that risks tearing apart the anti-establishment party and delaying the creation of the Cabinet. Party leaders who met Draghi on Feb. 6 and again on Feb. 9 had sounded upbeat about the prospects of joining the broad-based administration, which he is putting together to tackle the coronavirus health emergency and economic slump. With pledges of support from a host of groups, including the League, Forza Italia, and the Democratic Party, Draghi doesn’t need 5-Star votes. However, the movement has the largest number of lawmakers in both houses of Parliament, and its absence would undermine his efforts to build a national unity alliance. As usual for such a major decision, 5-Star had been expected to hold an online ballot of members to take the final decision. But the leadership had to …