Money Pours In as Move to Stop Donald Trump Expands

Outside groups are moving to deploy more than $10 million in new attack ads across Florida and millions more in Illinois, casting Mr. Trump as a liberal, a huckster and a draft dodger. Mr. Trump’s reed-thin organization appears to be catching up with him, suggesting he could be at a disadvantage if he is forced into a protracted slog for delegates. And vote tallies on Saturday made clear that Mr. Trump has had at least some trouble building upon his intensely loyal following, leaving him increasingly dependent upon landslides in early voting. The Stop Trump forces are beginning to pour money into television ads, with a particular focus on the big states voting on March 15. Four different groups have reserved at least $10 million in airtime in Florida so far, according to trackers of media spending.