Next month, Santa Fe Mayor Javier Gonzales may face the biggest test of his mayoral career so far as voters decide whether or not to approve a tax increase on sugary beverages that he’s championed. The idea is to tax sugary beverages 2 cents per ounce. That money will pay for 1,000 spots in existing pre-kindergarten education facilities around the city for children of low-income families. Matt Ross, a spokesman with the mayor’s office, said that the city doesn’t need to use the additional revenue to create a public early childhood education program because of existing private and nonprofit preschools in Santa Fe. “The capacity is there, there’s just a lack of affordability,” Ross said in an interview.