In 2010, Arizona v0ters passed proposition 100, a 1% "temporary" sales tax increase that was meant to help fill in the budget hole created by the recession. The tax was only to last 3 years.
It is pretty clear that by the end of 2013, when the tax expires, the rationale for the temporary tax cut will have passed. Already the state's finances are improving and all signs are that by 2014 the economy and real estate market should be greatly recovered.
But, having got taxpayers used to paying the higher tax, supporters of big government and public employees unions have put a proposition on the ballot this year (204) to make the 2010 tax increase permanent. The tax extension will go to a mish-mash of new programs.
This is how the government spending ratchet works. A "temporary" tax increase is justified in a fiscal emergency to fill in a recession-created hole. Government insiders decide they like having more money, and make the tax permanent. The new money is used to create brand new programs. Then, in the next recession, when all these brand new programs are now "essential" and "beyond the reach of even the worst austerity", a new, even higher "temporary" tax increase is necessary.