Interviews with dozens of delegates, delegate candidates, operatives and party leaders in recent days suggest that more than a hundred delegates — bound by rules and laws to back Trump on a first vote at the July convention in Cleveland — are prepared to break with him on a second ballot.

In one illustration of Trump’s lack of support, out of the 168 Republican National Committee members — each of whom doubles as a convention delegate — only one publicly supports Trump, and she knows of only a handful of others who support him privately.

Meanwhile, Ted Cruz has been whipping Trump in the quiet, early race to elect his own loyalists to become delegates to the convention, meaning that the Texas senator could triumph through delegates who are freed to vote their own preferences on a second ballot, regardless of who won their state…

Perhaps the most glaring warning sign for Trump is the looming battle for delegates in Massachusetts. Trump scored 49 percent of the vote there, 31 points ahead of second-place Kasich. Cruz finished a distant fourth with 9.6 percent. Yet, it’s Cruz who seems to have the momentum as the state GOP prepares to hold Congressional District conventions and a state party meeting that will elect 39 national delegates.