At the New York Times, "Ted Cruz’s Support Softens Among the Delegates He Courted" (via Memeorandum):
Even as Donald J. Trump trounced him from New Hampshire to Florida to Arizona, Senator Ted Cruz could reassure himself with one crucial advantage: He was beating Mr. Trump in the obscure, internecine delegate fights that could end up deciding the Republican nomination for president.Keep reading.
“This is how elections are won in America,” Mr. Cruz gloated after walking away with the most delegates in Wyoming.
But it turns out that delegates — like ordinary voters — are susceptible to shifts in public opinion. And as the gravitational pull of Mr. Trump’s recent primary landslides draws more Republicans toward him, Mr. Cruz’s support among the party’s 2,472 convention delegates is softening, threatening his hopes of preventing Mr. Trump’s nomination by overtaking him in a floor fight.
With each delegate Mr. Trump claims, he gets closer to the 1,237 he needs to clinch the nomination outright, and Mr. Cruz’s chances of stopping him — even if he pulls out a victory in Tuesday’s Indiana primary — shrink...
And tellingly, at Politico, "Inside Cruz's camp, confidence crumbles" (via Memeorandum).