The governors targeted for defeat are Florida's Rick Scott, Michigan's Rick Snyder, Ohio's John Kasich, Pennsylvania's Tom Corbett and Wisconsin's Scott Walker.
Union leaders welcomed the NLRB's proposals. The right wing House GOP and the National Retail Federation screamed.
Organized labor and its allies have turned to public pressure to push resurrection of the benefits through a hostile GOP majority in the U.S. House.
A Republican-named federal judge took another hack at the NLRB, ruling that President Obama illegally named its top enforcement officer.
The GOP momentum spread to states like Wisconsin, where Scott Walker quickly enacted legislation that stripped basic bargaining rights from public employees.
The Manufacturing & Workforce Development Committee of the Ohio legislature, unanimously voted to table three so-called 'right-to-work' bills.
The radical right GOP majority on the House Education and the Workforce Committee continued its anti-worker crusade.
By a 231-192 tally, yet another House Republican move to trash workers' rights and incomes went down the drain on June 4.
The potential cuts dismay Democrats. They also already draw an implicit veto threat from the Obama administration's Office of Management and Budget.
Forty-five GOP senators piously cloaked themselves in the Constitution and invoked what they claim is the intent of its framers.