Massachusetts teachers' unions are suing to prevent a proposed statewide tax cut from appearing on the November ballot, arguing that the measure's language is misleading and unconstitutional. The ballot initiative would lower the state's base income tax rate from five percent to four percent, affecting both wages and capital gains. This legal challenge comes amid criticism over declining student test scores and growing concerns about the unions' increasing focus on political activism rather than education. Supporters of the tax cut argue it would provide much-needed financial relief to working families, while opponents claim the measure is being misrepresented to voters.