He also said the referendum could prove even more divisive than a vote in the Legislature.
But the war is sure to pose other questions that will prove more divisive.
The current presidential campaign, however, is proving more divisive.
His presence proved divisive, which some say Columbia should have predicted.
The outcome is likely to prove divisive both within the court and outside it.
This policy proved deeply divisive, and quickly lost its importance as oil prices collapsed in the mid-1980s.
One issue that may prove divisive is labor's involvement in politics.
But even there, the politics of putting American boots on the ground has proven delicate and divisive.
Like rules requiring better inspections of cars, these have proved politically divisive.
The lawyers came up with three opinions, but even those proved divisive.