Back in 2021, the Legislature was debating income-tax cuts when then-Sen. Vince Leach decried the Democratsโ€™ doom-saying about the proposal.

The Republican from SaddleBrooke argued Democrats were performing a choreographed routine as they catastrophized about a โ€œfinancial cliffโ€ the bill would push the state off in three years.

During a Senate Appropriations Committee hearing, he mocked their claims that, as he put it, โ€œthe world is going to end in Arizona in three years because weโ€™re giving taxpayersโ€™ money back.โ€

Well, itโ€™s three years later now. The world hasnโ€™t ended โ€” Leach was right about that โ€” but the stateโ€™s budget situation is dramatically worse than it was. In fact, you could argue we have gone over a cliff.

In just two years, Arizona went from a luxurious surplus over $4 billion in 2022 to a deficit of around $1.5 billion.

The world isnโ€™t ending, but the Legislature and governor have had to negotiate painful cuts that would probably not be necessary if the Legislature hadnโ€™t agreed with Leach that โ€œWe are collecting too much money.โ€

Arizona Daily Star columnist Tim Steller

What that means, in practical terms, this year, is that:

โ€” The University of Arizona, already in a budget crisis, will face about $28 million more in total state cuts.

โ€” Arizona prisoners will continue to swelter in swamp-cooled cells instead of getting air conditioning.

โ€” Additional money for schools with high levels of poverty will be eliminated.

โ€” The approved expansion of I-10 west of Phoenix will be delayed three years.

โ€” $75 million from the stateโ€™s settlement with opioid manufacturers and sellers will go to prisons instead of substance-abuse treatment on the outside (unless Attorney General Kris Mayes has her way and blocks that).

The list goes on and, by necessity, adds up to that billion-and-a-half figure.

Always exhausting all available resources

We can blame the Legislatureโ€™s spending, which has soared alongside revenues, from $9.3 billion in fiscal year 2015 to $17.8 this fiscal year. Glenn Farley, director of policy and research at the center-right Common Sense Institute, does just that.

Republican former Gov. Doug Ducey.

When revenues rose sharply over recent years, Farley noted, โ€œThe Legislature didnโ€™t spend till some target level, then stop. It spent till it exhausted the resources.โ€

โ€œThe underlying question is why policymakers feel the need to exhaust all available resources in each consecutive session.โ€

Itโ€™s a valid point, but one that runs into the stateโ€™s reality of overdue roadwork, underpaid teachers and other unfulfilled needs that remain, despite our increased spending.

One of the big-ticket items, which often gets the blame for our deficit, is the massive expansion of the school vouchers, known as Empowerent Scholarship Accounts, that took place in 2022. Indeed, the total estimated cost of the program that pays $7,000-$8,000 for home-schooled children or private-school costs, is expected to total about $724 million this year.

It is out of control โ€” but not as out of control as widely believed. A June 6 analysis by the Grand Canyon Institute, a center-left think tank, put the additional cost of universal vouchers at $332 million this year. Next year, the institute projects a $429 million additional cost.

These figures are smaller than the total cost of the program because, among other reasons, some of the total spending goes toward disabled students and others who were eligible before the 2022 expansion. Plus, there is some cost savings for students who go from charter schools to ESAs.

So, $332 million is no small chunk, but it doesnโ€™t explain the deficit. To do that, you have to go back to the battle between advocates of supply-side economics and those who wanted to tax the rich, which played out in 2021, in part in that hearing of the Senate Appropriations Committee.

โ€œWasnโ€™t a conservative act at allโ€

Republicans were fighting back that session, because the year before, Arizona voters narrowly passed Prop. 208.

That initiative was being challenged in court, but at the time it still existed and was scheduled to impose a 3.5% surcharge on incomes above $250,000 for single people or above $500,000 for married couples. This tax increase for education was just the sort of thing then-Gov. Doug Ducey lived to fight.

Republicans such as Sen. J.D. Mesnard responded by trying to blunt the effects of the proposition. The bill he got passed wasnโ€™t all about a flat tax โ€” it intended to cap wealthy taxpayersโ€™ income-tax rate at 4.5%, undermining the intent of Prop. 208.

In an appropriations committee hearing, Democrats said nobody of note even supported the bill, but Sen. David Gowan, the Sierra Vista-area Republican, said that wasnโ€™t the case. He named off a whoโ€™s-who of traditional supply-side tax-cut supporters.

โ€œWe have (Arthur) Laffer, we have Grover Norquist, we have the Goldwater Institute and we also have the AFP,โ€ Americans for Prosperity, Gowan said.

There wasnโ€™t much demand for a flat-tax rate on the part of Arizonaโ€™s public, but there was urgency to block Prop. 208. And then a judge found Prop. 208 unconstitutional. What was left was a flat income-tax rate of 2.5%.

โ€œNobody stood in front of the Legislature and said, โ€˜Would you like everybody to have a 2.5 percent income tax rate?โ€™ โ€œ recalled Dennis Hoffman, the economist who is director of the L. William Seidman Research Institute at ASU. โ€œWhen (Prop.) 208 got ruled unconstitutional, they peeled the 208 provision off, and the result was everybody got 2.5 percent.โ€

As the new tax rate was implemented, individual income tax collections plummeted. Those collections went from $7.5 billion in fiscal year 2022 to $5.2 billion in 2023. This year individual income tax revenue is on pace to total around $4.7 billion.

The savings went largely to the wealthy, who pay the bulk of income tax. The Grand Canyon Institute estimated that 70% of the value of the reduced tax went to those with incomes of $200,000 or more.

โ€œTo give away $2 billion with the flat tax was incredibly poor fiscal management,โ€ said Dave Wells, research director at the institute. โ€œThis wasnโ€™t a conservative act at all. It was a radical irresponsible act in my mind.โ€

And itโ€™s the top reason that legislators are nickel-and-diming state services at the state Capitol now. It didnโ€™t have to be this way.

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Tim Steller is an opinion columnist. A 25-year veteran of reporting and editing, he digs into issues and stories that matter in the Tucson area, reports the results and his conclusions. Contact him at tsteller@tucson.com or 520-807-7789. On Twitter: @timothysteller