JEFFERSON CITY, Mo. (AP) — Gov. Jay Nixon froze $400 million of spending Friday for education, building repairs and state services because of concerns that legislators could override his veto of an income tax bill that he contends would drain state revenues.Nixon announced the spending restrictions while signing a nearly $25 billion operating budget for the 2014 fiscal year that starts next Monday. He also said he has directed his budget chief to prepare a plan to eliminate 1,000 employee positions if the tax-cut veto is overridden.The income tax cut "would undermine our fiscal foundation now and for years to come," Nixon said at a Capitol news conference. It is "a dangerous experiment we simply cannot afford. These costs are real and immediate if my veto is not sustained."Earlier this month, the Democratic governor vetoed a Republican-backed bill that would have phased in a tax deduction for business income over the next five years. That bill also would have gradually reduced the income tax rate for individuals and corporations over the next decade.Legislative projections presume the bill would reduce state revenues by more than $700 million annually once fully implemented. But the immediate cost would be smaller and each incremental tax rate reduction for individuals and corporations would take effect only if state revenues continue to rise by $100 million annually.But Nixon says the annual cost would be higher and could hit as much as $1.2 billion in the short term, based on other provisions in the bill that link Missouri's tax rates to federal legislation about online sales tax collections.Lawmakers would need a two-thirds majority vote in both chambers to override Nixon's veto during a September session.Senate Appropriations Committee Chairman Kurt Schaefer says he still wants to override the veto of the tax-cut legislation and accused Nixon of "playing politics with taxpayer money.""He's using it as leverage to basically further his opposition to giving Missouri taxpayers back any of their money," said Schaefer, R-Columbia.Nixon put a hold on a $66 million increase — which he originally recommended to lawmakers — in Missouri's $3 billion funding formula for public schools. He imposed a 4 percent spending freeze on public colleges and universities, which essentially wipes out a funding increase and dips into the institutions' core budgets. And Nixon froze a $10 million appropriation that would have funded a cooperative medical school program in Springfield between the University of Missouri and CoxHealth and Mercy Health System.Gov. Jay Nixon