Banks and Dodd-Frank Act foes on Capitol Hill, close toachieving their biggest financial-regulation rollback since the2008 credit crisis, are already looking to next year for morewins.

Wall Street firms such as JPMorgan Chase & Co. and GoldmanSachs Group Inc. and regional counterparts like PNC FinancialServices Group Inc. and SunTrust Banks Inc. will be counting onRepublican control in both houses of Congress to speed up reversalof what they call the overreach of the 2010 regulatory law.

“We've finally broken through,” said Senator Mike Crapo ofIdaho, who will be part of a Republican majority next year.“There's opportunity to go further and make other changes.”

Lobbyists will be trying to build on this week's gains,highlighted by the federal budget bill's inclusion of a measureeasing a requirement that banks separate some swaps trading with U.S. backstops. Insurersincluding MetLife Inc. and Prudential Financial Inc. won a break onhow capital requirements will be imposed.

The Republican-led efforts are likely to face fierce oppositionfrom Democrats such as Senator Elizabeth Warren of Massachusettsand Representative Maxine Waters of California, both of whomcriticized the agreement on the swaps measure this week. AndRepublicans, who will hold 54 of the 100 seats in the Senate, willneed Democrats on board to advance major bills.

Here is a look at five of the financial industry's toppriorities for 2015:

Systemic threshold. Every bank withmore than $50 billion in assets is systemically important,according to Dodd-Frank, subjecting them to a lot more oversight.With regulators including Federal Reserve Governor Daniel Tarulloand Comptroller of the Currency Thomas Curry acknowledging the barmay be set too low, industry groups will push lawmakers to boostthe threshold. Regional banks such as SunTrust Banks Inc. and FifthThird Bancorp are pushing for changing the threshold, contendingthat they don't pose the systemic threat that Wall Street banksdo.

Fiduciary duty. Lobbyists are alsotargeting a rule languishing at the Securities and ExchangeCommission (SEC) that would hold brokers to a fiduciary dutysimilar to what registered investment advisers have, requiring themto place clients' interests above their own. Republicans pitchedthe idea of scrapping the requirement during the budgetnegotiations, according to a Democratic aide who requestedanonymity to discuss the talks. It was dropped from the final bill,and may be revisited next year.

FSOC transparency. One of thefinancial industry's chief complaints about the Financial StabilityOversight Council—a group of regulators established to monitor andaddress systemic threats—is that the panel does most of itsbusiness behind closed doors. In the coming year, the industry willcontinue pushing efforts to shed light on the group—especially itsprocess for designating firms as complex and interconnected enoughto warrant extra oversight.

Consumer Bureau. Bank lobbyists andRepublican lawmakers will have their best shot at making changes tothe funding and structure of the Consumer Financial ProtectionBureau since the agency was created under Dodd-Frank. SenatorRichard Shelby, the Alabama Republican who is in line to take overas Banking Committee chairman, has been a leading critic of thebureau and will spearhead efforts to have its budget subject tocongressional appropriations instead of drawn from the Fed andshift it from a sole director to a five-member commission.

Volcker CLO. The industry will renewefforts to water down the Volcker Rule, which was included inDodd-Frank as a way to bar banks from making risky bets with theirown capital and limit their ability to invest in private equity andhedge funds. A bill that would give banks more freedom to tradecollateralized loan obligations (CLOs), leveraged financing thatfunds most corporate buyouts, wasn't taken up by the Senate afterpassing the House earlier this year. The measure may have a betterchance with both houses of Congress under Republicanleadership.

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