In CBS's polling, Trump's lead over Sen. Ted Cruz has dropped since March. Last month, he led by 20 points. Now he leads by 13.
But that's where the good news for the never-Trumpers ends.
First of all, Republicans are slightly more likely to say that they would support Trump's nomination "enthusiastically" than they were last month. Overall, two-thirds of Republicans say they'd support him enthusiastically or with some reservations — a higher percentage than says that about Cruz or Gov. John Kasich. More Republicans are likely to say they'd support Kasich simply because he would be the nominee than any other reason.
What's more, the number of people saying "never Trump" literally — that they'd never vote for him — is essentially the same as the number of people who say that about Cruz or Kasich.
Trump is viewed unfavorably by more Republicans than his opponents — but he's also viewed more favorably.
(Among all voters, CBS's findings mirror those of a new Washington Post/ABC poll: Trump is very unpopular outside his party.)
Trump's persistent strategy to burden his opponents with derogatory labels may be continuing its winning streak. (Remember "Little Marco"? "Low-energy" Jeb!?) More than two-thirds of Republicans say that Trump believes what he says — while fewer than half of Republicans say the same about ("lyin'") Ted Cruz.
At the same time, Republicans see all three candidates as being generally prepared to be president, which runs contrary to a key argument of the anti-Trump contingent.
None of which means that Trump won't be stopped before the convention. For the most part, that process will churn on under the force of its own inertia. If this one poll is correct, though, efforts to paint Trump as unacceptable aren't really working. And with more than three months left until the convention, it suggests that efforts to continue to stand in Trump's way for the duration may not be embraced by the Republican base.