A handful of independent groups have pummeled Donald Trump with $35.5 million worth of lacerating television commercials and other attacks in the run-up to Tuesday's primaries, hoping to dent and damage the Republican front-runner enough to keep him from securing the party's presidential nomination.
The biggest effort has been in Florida, which saw $15.7 million worth of anti-Trump spending by Monday. Another $5.3 million was spent in Illinois, where voters also go to the polls today. Ohio saw $1.35 million, while Missouri saw $1.24 million.
Altogether, Trump has fielded more attacks than all the other 2016 candidates combined. But the effort only began in earnest a few months ago, long after the New York businessman had established his front-runner status.
Weiyi Cai and John Muyskens contributed to this report.