Donald Trump has had a good run of numbers lately. While his victory in New York this week was expected, he got 60 percent of the vote, more than the roughly 55 percent projected by the polls. He appears headed for victories in Maryland and Pennsylvania, which vote on Tuesday. He’s gained ground in California and is narrowly ahead of Ted Cruz in the first public polls of Indiana. He’s added about 2 percentage points over the past two weeks in our national polling average.
You could push back against some of these details. Some of the California polls come from pollsters1 that have had a Trump-leaning house effect or that used an unorthodox methodology. The Indiana polls have Trump leading, but with only about 39 percent of the vote, which might not be enough if the rest of the vote consolidates behind Cruz. The national poll gains are small and may just be statistical noise.
But with Trump’s path to 1,237 delegates on such a knife’s edge, every percentage point matters. And it’s possible that Trump has moved a few voters into his column with a series of process arguments that he’s been pressing recently.