WASHINGTON -- The just-completed deal to resolve the so-called fiscal cliff has created an even greater cliff down the road. By the end of February, lawmakers will have to grapple with $1 trillion in sequestration cuts that are scheduled to take effect and the need for a debt limit increase. Shortly thereafter, they will have to deal with the end of a continuing resolution to keep the government funded.

Any one of these issues on its own would be difficult to resolve. Taken together, they could produce complete gridlock, which itself would have deep economic consequences.

President Barack Obama has pledged that he won't negotiate over the debt ceiling as a matter of principle. But Republicans are still insisting that they will extract as many concessions from the talks as they can.

Sen. Pat Toomey (R-Pa.) said on MSNBC's "Morning Joe" this week, "we Republicans need to be willing to tolerate a temporary, partial government shutdown" in order to achieve spending cuts and entitlement reforms.

On Friday morning, meanwhile, House Speaker John Boehner (R-Ohio) told members that he was prepared to use the debt ceiling fight as leverage to get spending cuts. According to a source in the room, Boehner showed fellow lawmakers the results of a survey by the Winston Group, a GOP polling firm, which showed that 72 percent of Americans "agree any increase in the nation's debt limit must be accompanied by spending cuts and reforms of a greater amount."

"The debate is already under way," the speaker said.

Elsewhere on Friday morning, Sen. John Cornyn (R-Texas), the second-ranking Senate Republican, penned an op-ed making a similar argument.

Republicans are more determined than ever to implement the spending cuts and structural entitlement reforms that are needed to secure the long-term fiscal integrity of our country.

The coming deadlines will be the next flashpoints in our ongoing fight to bring fiscal sanity to Washington. It may be necessary to partially shut down the government in order to secure the long-term fiscal well being of our country, rather than plod along the path of Greece, Italy and Spain. President Obama needs to take note of this reality and put forward a plan to avoid it immediately.

It wasn't entirely clear from the op-ed whether Cornyn was arguing for Republicans to avoid passing an additional continuing resolution (absent spending cuts), refuse to raise the debt ceiling, or both. A spokeswoman for the Texas Republican told The Huffington Post that she didn't see a distinction between the two, with respect to whether or not the GOP should use them as leverage.

"I wouldn't look too much into it. I think there are three big deadlines," the spokeswoman said, adding sequestration into the mix.

A Republican Senate aide added: "We all know this deadline is coming. In regards to the CR vs the debt ceiling, a downgrade will likely occur if spending is not cut, not if Congress were to refuse to [raise the] debt ceiling temporarily."

But there would, indeed, be different consequences depending on which event is used to extract spending cuts. If, for example, Congress passes a debt limit increase but fails to pass a continuing resolution, the government can continue to borrow funds to pay its existing bills. But it would cease to operate as normal.

On the other hand, if Congress were to pass a continuing resolution but not raise the debt ceiling, the government would be operating on dwindling funds. Over time, the Treasury would fail to meet its obligations on salaries and wages, retirement funds and social security benefits.

And then there would be the macro and global impact. As a 1979 Government Accountability Office report noted:

At a minimum, however, the government could be subject to additional claims for interest on unredeemed matured debt and to claims for damages resulting from failure to make payments. But even beyond that, the full faith and credit of the U.S. government would be threatened. Domestic money markets, in which government securities play a major role, could be affected substantially.

More recently, JP Morgan's managing director outlined the consequences in a letter to the Treasury Department. Among the impacts projected were the following:

  • A rise in Treasury's long-term funding costs;
  • A contraction of credit;
  • A reduction in the purchase of Treasuries by foreign investors on a permanent basis or even sell off exiting holdings;
  • A downgrading of the U.S. sovereign credit rating;
  • A possible run on money market funds;
  • The destruction of market confidence.

Also on HuffPost:

Loading Slideshow...
  • The Deficit Has Grown Mostly Because Of The Recession

    The deficit has ballooned not because of specific spending measures, but <a href="http://research.stlouisfed.org/fred2/graph/?s[1][id]=FYFSD" target="_hplink">because of the recession</a>. <a href="http://www.whitehouse.gov/omb/budget/Historicals" target="_hplink">The deficit more than doubled</a> between 2008 and 2009, as the economy was in free fall, since laid-off workers paid less in taxes and needed more benefits. The deficit then shrank in 2010 and 2011.

  • The Stimulus Cost Much Less Than Bush's Wars, Tax Cuts

    Republicans frequently have blamed <a href="http://projects.nytimes.com/44th_president/stimulus" target="_hplink">the $787 billion stimulus</a> for the national debt, but, when all government spending is taken into account, the stimulus frankly wasn't that big. In contrast, <a href="http://www.huffingtonpost.com/2011/06/29/cost-of-war-iraq-afghanistan_n_887084.html" target="_hplink">the U.S. will have spent nearly $4 trillion</a> on wars in the Middle East by the time those conflicts end, according to a recent report by Brown University. <a href="http://www.washingtonpost.com/blogs/fact-checker/post/revisiting-the-cost-of-the-bush-tax-cuts/2011/05/09/AFxTFtbG_blog.html" target="_hplink">The Bush tax cuts have cost nearly $1.3 trillion</a> over 10 years.

  • The Deficit Grew Under George W. Bush

    When George W. Bush took office, <a href="http://www.whitehouse.gov/omb/budget/Historicals" target="_hplink">the federal government was running a surplus</a> of $86 billion. When he left, that had turned into a $642 billion deficit.

  • The Deficit Is Shrinking

    <a href="http://www.whitehouse.gov/omb/budget/Historicals" target="_hplink">Last year's federal budget deficit</a> was 12 percent lower than in 2009, according to the Office of Management and Budget.<a href="http://www.whitehouse.gov/omb/budget/Historicals" target="_hplink">The deficit is projected to shrink</a> even more over the next several years.

  • Investors Are Paying Us To Borrow Money

    <a href="http://www.treasury.gov/resource-center/data-chart-center/interest-rates/Pages/TextView.aspx?data=realyield" target="_hplink">The interest rate on 10-year Treasury bonds</a> is <em>negative</em>, according to the Treasury Department. Investors are even paying us for 30-year Treasury bonds, when adjusted for inflation.

  • Investors Are Not Running Away

    <a href="http://www.businessinsider.com/niall-ferguson-has-been-wrong-on-economics-2012-8" target="_hplink">Conservative commentators</a> have been warning for years that investors will run away from Treasury bonds because of the national debt. So far it's not happening. <a href="http://www.huffingtonpost.com/2012/05/30/treasury-yield-record-low_n_1555975.html" target="_hplink">Interest rates on Treasury bonds</a> continue to hover at historic lows.

  • Health Care Reform Reduces The Deficit

    <a href="http://www.huffingtonpost.com/2012/09/04/republican-platform-2012-factual-mistakes_n_1840795.html#slide=1461142" target="_hplink">Republicans have blasted the Affordable Care Act</a> as "budget-busting." But <a href="http://www.huffingtonpost.com/2012/09/04/republican-platform-2012-factual-mistakes_n_1840795.html#slide=1461142" target="_hplink">health care reform actually reduces the deficit</a>, according to the Congressional Budget Office.

  • The U.S. Is Borrowing Less From China

    <a href="http://krugman.blogs.nytimes.com/2012/08/30/fear-of-china-syndrome/" target="_hplink">The U.S. government is borrowing much less from foreign countries</a> than before the recession, according to government data cited by Paul Krugman. That is because the U.S. private sector is financing our bigger deficits.

  • We Spend A Lot On Defense

    <a href="http://www.cbpp.org/cms/index.cfm?fa=view&id=1258" target="_hplink">Defense spending constituted 20 percent</a> of federal spending last year, or $718 billion, according to the Center on Budget and Policy Priorities. This adds up to <a href="https://twitter.com/AJInsight/statuses/241269134996959234" target="_hplink">41 percent of the world's defense spending</a>, according to Bloomberg TV anchor Adam Johnson. <a href="http://www.huffingtonpost.com/2012/07/19/mitt-romney-military-budget_n_1687601.html" target="_hplink">Mitt Romney has vowed</a> to not cut defense spending if elected president.

  • We Spend A Lot On Health Care

    <a href="http://www.cbpp.org/cms/index.cfm?fa=view&id=1258" target="_hplink">Health insurance, including Medicare and Medicaid, constituted 21 percent</a> of federal spending last year. In contrast, education constituted 2 percent of federal spending. Meanwhile, <a href="http://www.miamiherald.com/2012/08/19/2956609/middle-aged-blues-over-paul-ryans.html" target="_hplink">Mitt Romney and Paul Ryan have promised not to change Medicare</a> for Americans age 55 and older.

  • Republicans May Want Large Deficits For Now

    <a href="http://www.businessinsider.com/corporate-taxes-deficits-and-labor-vs-capital-during-reagans-first-term-2012-7" target="_hplink">The federal budget deficit ballooned</a> under Ronald Reagan, and that may be just the way Republicans like it. <a href="http://www.forbes.com/2010/05/06/tax-cuts-republicans-starve-the-beast-columnists-bruce-bartlett.html" target="_hplink">Some Republican thinkers</a> have proposed <a href="http://www.nytimes.com/2010/02/22/opinion/22krugman.html" target="_hplink">"starving the beast"</a>: that is, cutting taxes in order to use larger deficits to justify spending cuts later. Since Republicans ultimately want lower taxes and a smaller government, what better way is there to cut spending than to make it look urgent and necessary?