Yet the supermajority may not prove to be the cure-all that many Democrats hope.
Such supermajority votes are unlikely to be forthcoming-and will grow less so over time.
The proposed Balanced Budget Amendment would also include a supermajority requirement to raise taxes.
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Budget proposals that exceed the capped rate need a 60 percent supermajority of votes to pass.
These agreements often required a supermajority (frequently, 7 of 8) of neighboring landowners acting together.
Because Democrats have supermajority control of the General Assembly, the measure is expected to be approved.
Republicans had clear control in the House and firm control (although not a supermajority) in the Senate.
Michigan Proposition 5 would require a two-thirds supermajority in each chamber of the legislature to raise taxes.
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Republicans in Texas hold a majority in both chambers of the legislature, including a supermajority in the House.
He had a Democrat House, a Democrat Senate, a supermajority in both houses.
The Plympton plotters had no hope of winning a 75% supermajority right away.
The Plympton plotters had no hope of winning that 75% supermajority right away.
To put the vote on the ballot the traditional way, Mr Brown needs a supermajority (two-thirds) in the legislature.
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Having lost their supermajority in the Senate, the Democrats resorted to a questionable budget procedure to defeat a filibuster.
And in 2012, Democrats gained a supermajority in both houses of the California legislature for the first time since 1883.
Of course Mr Obama could get things done when he had a supermajority, and the stimulus even passed without one.
If the buyer is willing, tailor the contract to include specific triggers that will require a "supermajority" vote on those matters.
According to Americans for Tax Reform, 16 states currently have a supermajority requirement, which acts as a safeguard against tax hikes.
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When the legislature reconvened, in 2011, the Republicans had a supermajority in the House and retained their 19-12 lead in the Senate.
Michigan voters rejected Michigan Proposition 5 which would have required a two-thirds supermajority in each chamber of the legislature to raise taxes.
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It has already passed the Senate with a supermajority of 60 votes.
His ratings are falling, and in November's mid-term elections he looks likely, at the very least, to lose his supermajority in the Senate.
Washingtonians passed another initiative that requires a supermajority, as opposed to a simple majority, in the legislature to raise any tax at all.
If the Democrats also win a disputed seat in Minnesota, as seems likely, Mr Specter's defection would give them a 60-vote supermajority in the Senate.
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The parents who joined the suit have children in districts where a majority, but not a supermajority, of voters favored exceeding the cap to lessen cuts.
But since the Senate has an even stronger rural bias than the House and requires a supermajority of 60 to avoid filibusters, things could get even messier.
After the election some business types belatedly have started to express concerns about the new Democratic supermajority and what they will do with those new tax revenues.
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It is far from clear whether Mr Reid can muster the 60-vote supermajority he needs simply to bring such a bill to the Senate floor, let alone to pass it.
But since 2011 a simple majority has sufficed (a supermajority is still needed to approve any tax rises), which is why the Republicans were reduced to impotent grouches during the recent debate.
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Still, for years afterwards the Republicans were able to wield great influence as a minority party thanks to a rule that required a two-thirds supermajority in both chambers to pass a budget.
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