5 things to know before Obama rolls out his 2016 budget Monday

A quick quiz:

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Monday is —

a) Groundhog Day

b) Budget Day

c) A day for repeating the same old arguments over spending and taxes, only louder.

d) All of the above.

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If you picked "d," you're in the proper spirit for federal Budget Day, which appropriately falls on Groundhog Day this year. It's safe to predict we're in for way more than six more weeks of Republicans and Democrats fighting over how to spend our money.

Here are five things to know before President Barack Obama's 2016 budget fully emerges Monday:

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IT'S JUST AN OPENING BID

Despite all the hoopla surrounding it, a president's budget is merely a suggestion. That's especially true this year, with Obama delivering his multi-trillion-dollar wish list to a Senate and House run by the opposition.

The Constitution gives Congress power to decide how to spend taxpayers' money. After lawmakers get the president's budget, they'll set about coming up with their own, very different, spending plan. There's a hitch, though — their legislation needs Obama's signature to become law.

If the president and Congress can't compromise on spending, that's how we end up with a partial government shutdown. Republican leaders and Obama say they don't want that to happen this year.

Still, the usual big disputes loom: Obama wants more spending and higher taxes on the wealthy. Most Republicans want to spend less — except on the military — and resist tax increases.

Plus, this year Republicans are promising to use spending bills to attack Obama's signature health care law and to roll back his order giving some immigrants relief from deportation.

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OBAMA WILL BID HIGH

The president will call for increasing spending on agency operating budgets by 7 percent next year, blowing through limits set in an earlier bipartisan deal.

Previewing the detailed document to be released Monday, the White House said it would call for spending about $74 billion more next year than the painful automatic cuts Obama signed into law in that 2011 deal commonly known as the "sequester." Those harsh automatic cuts were originally set in motion as a threat that would force bipartisan agreement to replace them with something more sensible, but it didn't work.

Obama would roughly divide the extra money he seeks between the military and domestic programs, such as college aid, medical research and child care.

The White House, without giving details yet, says Obama would offset his spending increases by cutting inefficient programs and closing tax loopholes. In that way, he could continue the recent trend of shrinking the nation's annual budget deficits.

Republicans say that's no good. They prefer to tackle the deficit by holding domestic spending in check, or trimming even more.

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A BIG QUESTION: HOW MUCH DOES THE MILITARY GET?

The military brass has been pleading for relief from their automatic spending limits. Many lawmakers in both parties, eyeing terror attacks and trouble spots around the globe, are anxious to help.

Obama's proposal to raise the defense budget by $38 billon would allow for more ships and fighter jets. By bundling the military increase with more domestic spending, Obama will pressure Republicans eager to boost the military budget to give in to some of his priorities.

Will Republicans insist on holding the line on spending, even if it means the Pentagon has to go without, too? And how far are Democratic lawmakers and Obama willing to go in using national defense as a bargaining chip?

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DETAILS MATTER

If Congress is sure to reject and redo Obama's budget proposal, you might wonder: Why does he bother?

For one thing, the law says he has to submit a budget to Congress by the first Monday in February, although Obama has sometimes missed that deadline.

Plus, the federal budget is a big deal. It's expected to be in the vicinity of $4 trillion — that's trillion with a "t'' — for the fiscal year beginning in October.

It goes much deeper than political rhetoric about ending big government or boosting the middle class.

The budget carries thousands and thousands of decisions about concrete things the government does — like paying park rangers, Border Patrol agents and workers who answer IRS help lines. Spending money for air traffic control, medical research and food inspection. Weeding out ineffective programs and launching new ones that, hopefully, work better.

The exercise has gone awry over the last few years, leading to showdowns and a 2013 shutdown and failure to complete the normal budget process in a gridlocked Congress.

But the budget minutia that federal agencies sweat over and congressional committees are charged with overseeing is what keeps the U.S. government running.

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MOST OF THE BUDGET IS ON AUTOPILOT

Running federal agencies isn't even the half of it.

The biggest share of the budget goes to what's called "mandatory spending" — ongoing payments that don't need annual approval by Congress. Social Security, Medicare and Medicaid are the biggies. Others include unemployment checks, food stamps and pensions for veterans and government retirees.

To take on the nation's long-term debt problem, lawmakers and the president would have to deal with these growing costs.

So far, attempts to reach this sort of "grand bargain" have failed, repeatedly.

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Associated Press writers Josh Lederman and Andrew Taylor contributed to this report.