Monsanto, the biotechnology and agriculture giant, is spending heavily to defeat a ballot measure that would require genetically modified products to be labeled in Washington.
The committee opposing November's Initiative 522 filed a campaign report Monday disclosing a nearly $4.6 million contribution last week from Monsanto. It's larger than the rest of the money assembled by the committee combined.
The main group pushing for food labels had previously been evenly matched with opponents, with both having raised about $3.3 million.
Ahead of what is sure to be an expensive advertising war, the Seattle Times reported today that a new poll shows strong and broad support for I-522 among voters.
UPDATE 9/11: The "no" campaign on Tuesday added another major contribution from an agricultural company, this time $3.2 million from DuPont Pioneer.
The anti-522 group has now raised more than $11 million, more than tripling its haul in less than a week.