But now, the Obama campaign says it was not a pledge, just an option.
At first, such a pledge sounds dryly resolute, like the plot synopsis for a science documentary.
Republicans campaigned for the mid-term elections on a pledge to put a halt to the reforms.
BBC: US elections 2010: Democratic losses and Obama's agenda
He said the government had failed on act on a pledge to end mixed sex wards.
If it is a pledge, why would we ask them to repeat it daily?
Mr O'Brien subsequently created a pledge on the Pledgebank website which attracted funding for the group.
Mars Inc. and Kraft signed a pledge to shift more child-directed advertising to healthier foods.
In its place was a pledge to work with other countries to eliminate nuclear weapons.
Did a pledge to shorten hospital waiting lists encourage hospitals to give priority to minor cases?
At the heart of his ETP is a pledge to introduce a more meritocratic society.
And it includes a pledge to basically defend Iraq's system against internal and external threats.
Two of the aspiring politicians signed a pledge to Uchiyama incorporating the JTR slogan.
Teens, teachers and parents sign a Pledge on Facebook to speak up when they see bullying.
It's only a pledge so far, but I'm sure I'll be able to fulfill it.
You can also weigh in on Twitter or make a pledge on Facebook.
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Economic recovery, earmark reduction, a pledge for cleaner energy: all of these are ambitious proposals.
One of their solutions has been a pledge to abolish the taxes on employer-provided medical insurance.
The Queen's Speech included a pledge to implement the recommendations of the Calman review of devolution.
For now, the district is responding with additional campus police and a pledge to spend millions more on security.
Panetta said the men and women of the Defense Department renew a pledge made 10 years ago.
Warren slid down the wall, his hand over his heart as if he were taking a pledge.
During the campaign, Mr Toledo signed a pledge to keep the city's electricity firm in state hands.
Finally, Algerian officials responded to calls for a domestic inquiry with a pledge for swift action in mid-February.
More than 6, 000 fans have signed a pledge to help end bullying as part of his "Respect" program.
The coalition agreement included a pledge to hold such a review, focusing on EU rules on working hours.
BBC: William Hague launches full 'audit' of EU law and the UK
Obama recently restated his desire to close Guantanamo, a pledge he made shortly after his inauguration in January 2009.
In the 2010 midterm elections, all 95 candidates that signed a pledge in support of net neutrality lost.
And at that time there was a pledge by the intelligence community to do better on connecting the dots.
Previously the state attorney general for eight years, he had campaigned on a pledge for pursuing greater ethical standards.
Still, last week, Jakarta seemed set to break a pledge to lift the export ban on crude palm oil.
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