By Pat Loeb

PHILADELPHIA (CBS) — A barrage of advertisements has targeted Philadelphia Mayor Jim Kenney’s proposal to raise money for universal pre-K by taxing soda and other sugary beverages. But Kenney is not backing down.

“It’s not a grocery tax, number one, which is very misleading to people,” Kenney says.

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The mayor says everyone is entitled to their opinion, but he would like opponents to stick to facts. He pulled out a few of his own that he thinks work in his favor.

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“We have a 26 percent poverty rate, we have children not getting education, we have facilities that are falling down,” Kenney says. “And big soda has a lot of money, they make a lot of profit off their product and they market in neighborhoods that suffer from these very things that we’re trying to cure.”

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The mayor estimates the 3 cents an ounce tax would raise about $400-million over five years, most of it for pre-K, but also for improvements to parks, recreation centers, libraries and energy efficiency, and reducing pension fund debt.