A1: Negotiated by Senate Majority Leader Mitch McConnell and Minority Leader Chuck Schumer, the Bipartisan Budget Act of 2018 (BBA 2018) is a two-year agreement that raises the spending limits for both defense and nondefense in FY 2018 and FY 2019. As shown in Table 1, the deal raises the caps for the national defense base budget by $80 billion in FY 2018 from the previous limit of $549 billion and increases the FY 2019 cap by $85 billion from $562 billion. In comparison, the nondefense funding for FY 2018 is raised $63 billion above the cap of $516 billion while FY 2019 funding includes a $68 billion increase above the prior cap of $529 billion.

Overseas Contingency Operations (OCO) funding—the account intended to fund operations in Iraq and Afghanistan—has often been used to supplement funding levels above the adjusted budget cap levels. Because OCO is not subject to the spending caps and the law does not specify which programs may or may not be funded under OCO, the account has become a loophole to increase funding for base defense priorities without violating the caps and triggering sequestration.

The text of BBA 2018 does not detail specific OCO levels for defense and nondefense for FY 2018–2019, yet reported toplines for those years and the president’s budget request for FY 2019 seemingly confirm OCO funding for defense at $71 billion for FY 2018 and $69 billion for FY 2019. That brings total defense funding to $700 billion in FY 2018 and $716 in FY 2019.

Q2: How does this budget deal compare with previous agreements in terms of defense spending?

A2: The Bipartisan Budget Act of 2018 follows in the pattern of the Bipartisan Budget Act of 2013 (BBA 2013) and the Bipartisan Budget Act of 2015 (BBA 2015) by increasing the budget caps for a two-year period for both defense and nondefense. The main difference between BBA 2018 and the previous agreements is the sheer magnitude of the deal. BBA 2013 increased base defense spending over the budget caps by $32 billion over two years (FY 2014–2015), while BBA 2015 raised funding by $40 billion over two years (FY 2016–2017). However, BBA 2018 increases funding above the caps by a whopping $165 billion for FY 2018–2019—a 15 percent increase above the current cap for each year.

Of the three budget deals, BBA 2015 was the only agreement to specifically detail OCO funding levels for the two relevant fiscal years in the legislation as part of the deal. But BBA 2013 and BBA 2015 both relied significantly on additional OCO funding to raise spending levels for defense (and to a lesser extent nondefense), whereas the increase in BBA 2018 is primarily in the adjusted budget caps for the base budget rather than OCO. In an addendum to the president’s FY 2019 budget request, OMB director Mick Mulvaney—who had previously condemned OCO as a “slush fund,” “sham,” and an “accounting trick” while serving as a member of the House—claimed the higher spending caps mandated under the deal provide “an opportunity to fix some long-time budget gimmicks that the Congress has used to circumvent the spending caps and add billions to the Nation’s deficits,” an obvious reference to the war funding account.

Q3: What does the budget deal mean for defense funding in FY 2018?

A3: The BBA 2018 provides more funding for defense than President Trump requested in his administration’s May 2017 budget request. Whereas the administration had originally proposed to raise the budget cap on base defense spending by almost 10 percent to $603 billion, the BBA 2018 raises the cap by 15 percent.

Importantly, the budget deal does not provide actual appropriations that specify how the money will be used. The government remains under a continuing resolution until March 23, and over the coming weeks congressional appropriators will need to follow up the budget deal by passing appropriations bills for FY 2018 that specify how the money will be allocated. While these appropriations have not yet been finalized, the House and Senate appropriations bills (and to a lesser extent the FY 2018 National Defense Authorization Act) provide a good indicator for how Congress will use the additional funding granted by the BBA 2018.

Q4: How does the budget deal affect defense funding in FY 2019?

A4: The Trump administration’s FY 2019 budget requests a total of $716 billion for national defense, a 7 percent increase above the $668 billion projected for FY 2019 in last year’s budget request. The administration had planned to put much of this increase into OCO to skirt the budget cap, but the BBA 2018 budget deal allowed it to push the increase into the base budget under the higher budget cap. Because the budget deal was reached just three days before the official release of the FY 2019 request, the administration was not able to revise all of the budget materials in time to reflect this change.

Table 4. Comparing the FY 2019 Projection in Trump Administration’s FY 2018 Request with the President’s Budget (PB) 2019 for Defense

*The FY 2018 budget request included a placeholder of $52.0 billion in OCO funding.

In the rollout conference and overview for the FY 2019 defense budget request, DoD comptroller David Norquist was keen to emphasize that the “National Defense Strategy guided the process [DoD] used to build the budget.” The National Defense Strategy “determined the issues we examined, the decisions we made, and the level of funding that was required.” Norquist additionally noted that BBA 2018 increased defense funding to “a level that would support the strategy.” Whether that funding will be used effectively to “restore and rebuild our military” will be seen over the course of the next fiscal year.

Seamus Daniels is a research assistant for defense budget analysis at the Center for Strategic and International Studies (CSIS) in Washington, D.C. Todd Harrison is a senior fellow and director of defense budget analysis at CSIS.

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