Lawmakers are bracing for chaos in December as they plunge into several high-stakes legislative fights.

Both chambers are expected to be in session for roughly 15 days before leaving town until January, but the looming battles could push their exit date closer to Christmas.

Republicans want to get a key agenda item, tax reform, to President Trump’s desk by the end of the year.





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That would be a daunting task even under the best of circumstances — but Republicans are also facing a Dec. 8 deadline to avoid a government shutdown, with fights over immigration and health care also crowding the agenda.

Sen. Lindsey Graham Lindsey Olin GrahamGraham: GOP will confirm Trump's Supreme Court nominee before the election Fox's Napolitano: Supreme Court confirmation hearings will be 'World War III of political battles' Grassley, Ernst pledge to 'evaluate' Trump's Supreme Court nominee MORE (R-S.C.) said the deadlines could be just what Republicans need to get things accomplished.



“I think that’s maybe the only way we can get it done,” he told The Hill. “We’re the ultimate do-your-homework-at-the-last-minute crowd.”

Here’s what to watch for as Congress prepares for an end-of-the-year sprint.

Tax reform

Senate Republicans are rushing to pass their tax plan this week after it was voted out of the Senate Finance Committee along party lines.

They have a narrow path to getting the bill through the Senate. With 52 seats, Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellGraham: GOP will confirm Trump's Supreme Court nominee before the election Trump puts Supreme Court fight at center of Ohio rally The Memo: Dems face balancing act on SCOTUS fight MORE (R-Ky.) can only afford to lose two GOP senators, if every member of the Democratic caucus votes no; Vice President Pence could break a tie.

Sen. Ron Johnson Ronald (Ron) Harold JohnsonThis week: Supreme Court fight over Ginsburg's seat upends Congress's agenda GOP set to release controversial Biden report Democrats fear Russia interference could spoil bid to retake Senate MORE (Wis.) became the first Republican senator to say he couldn’t currently support the House or Senate bills, arguing they don’t do enough to help “pass-through” businesses, or those taxed at the individual rate instead of the corporate rate.



Meanwhile, several GOP senators have raised concerns about the impact the tax plan could have on the deficit. The Senate plan can add up to $1.5 trillion to the debt over the next decade.



If the Senate is able to pass its own bill this week, Republicans will still need to work out a deal in conference committee and pass the final legislation.

Finding a deal won’t be easy, as the House and Senate bills differ in significant ways.

The House bill, for example, would scale back the state and local tax deduction, while the Senate bill would end it entirely.

Time is of the essence, with a special election in Alabama on Dec. 12 that could leave Senate Republicans with only a one-seat majority.

Health care

Tied closely to the tax plan is a renewed fight over health care.

The Senate GOP plan would repeal ObamaCare’s individual mandate, which requires most Americans to buy health insurance or pay a penalty.

But GOP Sen. Susan Collins Susan Margaret CollinsGraham: GOP will confirm Trump's Supreme Court nominee before the election Gardner signals support for taking up Supreme Court nominee this year Tumultuous court battle upends fight for Senate MORE (Maine), a key vote on the tax plan, is warning that linking the mandate repeal and the tax fight is a mistake that could make it harder to get a bill through Congress.

"My concern is that if we combine the health-care issues with tax reform we make it far more controversial," she told reporters before lawmakers left town for Thanksgiving.

The Trump administration is signaling that it’s open to dropping the ObamaCare provision. Mick Mulvaney Mick MulvaneyMick Mulvaney to start hedge fund Fauci says positive White House task force reports don't always match what he hears on the ground Bottom line MORE, Trump’s budget chief, told CNN the White House is “OK with taking it out” if it is an “impediment” to passing the overall legislation.

As part of a trade off, Senate GOP leaders have signaled they are prepared to pass legislation from Sens. Lamar Alexander Andrew (Lamar) Lamar AlexanderGraham: GOP will confirm Trump's Supreme Court nominee before the election The Hill's Morning Report - Sponsored by Facebook - Washington on edge amid SCOTUS vacancy This week: Supreme Court fight over Ginsburg's seat upends Congress's agenda MORE (R-Tenn.) and Patty Murray Patricia (Patty) Lynn MurrayTrump health officials grilled over reports of politics in COVID-19 response CDC director pushes back on Caputo claim of 'resistance unit' at agency The Hill's Morning Report - Sponsored by The Air Line Pilots Association - Pence lauds Harris as 'experienced debater'; Trump, Biden diverge over debate prep MORE (D-Wash.) that would provide two years of funding for ObamaCare’s cost-sharing reduction payments.

Democrats, however, are warning that they won’t help pass that bill, which would need 60 votes, if Republicans link it to the tax plan.

Lawmakers are also under pressure to reauthorize funding for the Children’s Health Insurance Program, which expired at the end of the September. Sen. John Cornyn John CornynTumultuous court battle upends fight for Senate Texas Democrats roll out first wave of planned digital ads as Election Day nears Calls grow for Biden to expand election map in final sprint MORE (R-Texas) has predicted that funding could end up in the December spending bill.

Government funding

One of the first deadlines lawmakers face is Dec. 8, when government funding will expire.

With Congress returning on Nov. 27, they’ll have less than two weeks to craft legislation to avoid a shutdown. In the Senate, tax reform is expected to consume much of the first week.



Speaker Paul Ryan Paul Davis RyanKenosha will be a good bellwether in 2020 At indoor rally, Pence says election runs through Wisconsin Juan Williams: Breaking down the debates MORE (R-Wis.) has floated that lawmakers might need to pass a short-term continuing resolution to give appropriators more time to reach a long-term agreement.

But Ryan said the stopgap bill would only last a few weeks. He wants to pass a full 2018 fiscal year funding bill by the end of December.

Complicating the timeline for passing a long-term funding bill are the spending caps.

Current spending levels are higher than the 2018 caps set by the 2011 Budget Control Act. Without a deal to raise the caps, across-the-board spending cuts would be triggered automatically in late January.

Congressional leaders are eyeing a deal to raise budgetary caps by as much as $200 billion over two years, but the agreement is still being ironed out.

Immigration

The fate of an Obama-era immigration program has emerged as one of the largest hurdles to getting a government funding deal.

The Trump administration is nixing the Deferred Action for Childhood Arrivals (DACA) program, which allows certain undocumented immigrants brought into the country as children to work and go to school without the fear of deportation.

The deadline for deciding what to do about DACA isn’t until mid-March, but Democrats are demanding that Congress take action before the end of the year.



Trump and Senate Republicans decided during a closed-door meeting last month that immigration would not be part of the spending bill, but House Democrats plan to force the issue.

Without Democratic support, it could prove difficult for House Republicans to pass legislation preventing a government shutdown. Several liberal senators are also pledging to oppose a funding bill without a DACA agreement.

Intelligence reforms

Lawmakers face an end-of-the-year deadline to renew a key surveillance program, but they face opposition from privacy hawks.

Both chambers have taken steps toward reauthorizing, and reforming, the National Security Agency’s warrantless surveillance program, which is set to expire on Dec. 31.

The provision authorizing the surveillance program, known as Section 702, allows the government to collect emails and text messages sent by foreign spies, terrorists and other foreign targets overseas.

Both the House Judiciary Committee and Senate Intelligence Committee have voted to advance their own proposals, but both measures are expected to face a contentious floor fight.

The Freedom Caucus in the House is pledging to oppose the Judiciary panel’s bill over what they argue are unacceptable breaches of Fourth Amendment protections.

Meanwhile, Sens. Rand Paul Randal (Rand) Howard PaulSecond GOP senator to quarantine after exposure to coronavirus GOP senator to quarantine after coronavirus exposure The Hill's Morning Report - Sponsored by National Industries for the Blind - Trump seeks to flip 'Rage' narrative; Dems block COVID-19 bill MORE (R-Ky.) and Ron Wyden Ronald (Ron) Lee WydenGOP set to release controversial Biden report Democrats fear Russia interference could spoil bid to retake Senate GOP senator blocks Schumer resolution aimed at Biden probe as tensions run high MORE (D-Ore.), as well as Sens. Mike Lee Michael (Mike) Shumway LeeMcConnell shores up GOP support for coronavirus package McConnell tries to unify GOP Davis: The Hall of Shame for GOP senators who remain silent on Donald Trump MORE (R-Utah) and Patrick Leahy Patrick Joseph LeahyBattle over timing complicates Democratic shutdown strategy Hillicon Valley: Russia 'amplifying' concerns around mail-in voting to undermine election | Facebook and Twitter take steps to limit Trump remarks on voting | Facebook to block political ads ahead of election Top Democrats press Trump to sanction Russian individuals over 2020 election interference efforts MORE (D-Vt.), have introduced alternatives to the Senate Intelligence bill.

Flood Insurance

Congress will need to reauthorize the National Flood Insurance Program by early December.

The House passed its bill, the product of months of negotiations between conservatives and Republicans from coastal states, earlier this month. The legislation would renew the program for five years, update federal flood mapping requirements and seek to bolster an emerging private flood insurance market.

But the Senate has yet to take steps toward reauthorizing the program or lay out a path forward for potential legislation.

Lawmakers have until Dec. 8 to work out an agreement after a roughly three-month extension was included in the government-funding and debt-ceiling deal passed in September.