Campaigns pay the price for America's secular shift

America's fastest-growing religious group, the 'nones' (religiously unaffiliated), now comprise 29% of the population, surpassing Catholics and evangelical Protestants. Campaigns face higher costs to reach this dispersed group, relying on digital ads and canvassing, with spending at $1.40 per nonreligious voter compared to 45 cents for religiously affiliated voters.