The combustible mix of a gaping state deficit and electoral politics promises to make 2004 a heated year on Beacon Hill, in the view of the region's highest-ranking lawmaker.

''I think it can't help but be contentious,'' said Senate Majority Leader Frederick E. Berry of Peabody, reflecting on the coming year in an interview last week.

''The obvious and primary reason is that we are going to have a very difficult budget cycle,'' Berry said. ''I think the speculation that we are $2 billion in the hole is fairly accurate,'' he said of the projected budget deficit for fiscal 2005, which begins July 1.

''We did a lot of things to close the financial gap last year,'' Berry said, pointing to governmental reforms, fee increases, and the closing of corporate tax loopholes. He said that left few options outside of further budget reductions for addressing the fiscal 2005 deficit.

''That's where the rubber will hit the road: what programs, what money, will be cut,'' he said. ''That's the fiscal reality. The political reality is that the governor has already stirred up his rhetoric again. He's campaigning to defeat Democrats in the Legislature,'' said Berry, a Democrat.

''So you have a bleak fiscal reality, plus a political reality, and that's going to add up to a lot of ill will, and probably a lack of cooperation at some point.''

''Only in Massachusetts is it considered controversial for a Republican governor to support Republicans for office,'' said Romney's communications director, Eric Fehrnstrom. ''The governor believes the only way to bring real change to Beacon Hill is to elect reform-minded Republicans to the Legislature. We need a healthy two- party balance at the State House instead of a one-party monopoly.''

An 11-term senator and onetime Peabody city councilor, Berry, 54, is second in command in the Senate to President Robert E. Travaglini, a status he has enjoyed since January 2003. Although his tenure in the post has come during a troubled fiscal time, Berry said he is enjoying the role.

''It's fun,'' he said, though adding, ''It certainly would be more fun if we had a little more money.''

''It's a difficult thing to dismantle social programs that you fought hard to create,'' he said. ''It's hard to meet people day after day and have them make requests and have new energy and new ideas and look at them and say, 'I don't know if this is the time we can do that.' . . . They don't appreciate that the cupboard's bare.''

''On the other hand, I think my experience is good to have in the room to remind my colleagues that this won't last forever,'' he said of the budget crunch. ''Everything goes in cycles.''

Berry said he believes his position has allowed him to advocate well for the region, though he said the ongoing fiscal crunch makes that ''more and more challenging.''

For the coming year, he said a local priority for the area delegation will be to advance the proposed merger between the Essex Agricultural and Technical Institute and North Shore Regional Technical School into a new school that would also include Peabody's vocational programs.

''We are the only part of the state that doesn't have a first-class vocational school,'' said Berry, noting the importance of vocational education for the region's economy. ''If you talk to a tradesman, you learn that it is very difficult for them to find young, well-trained workers.''

Salem Mayor Stanley J. Usovicz Jr. said that Berry's ability to deliver resources to the district is limited by the state's financial problems. But he said having Berry in a leadership role is still a plus for the district, which includes Beverly, Danvers, Peabody, Salem, and Topsfield.

''Anytime you have the majority leader in your district, it can be helpful,'' Usovicz said.

Berry anticipates that other issues will generate lively debate this year. Among them is the pending legislation to make revisions to Chapter 40B, the state's affordable housing law, and the Legislature's response to the Supreme Judicial Court ruling on gay marriage. But he said, ''Everything is going to be overshadowed by the budget problems.''

Berry said he does not believe raising state taxes is an option now under consideration in the budget discussions, observing, ''There's a real lack of will in the Legislature to go near that.'' He added, though, that when Romney shortly releases his fiscal 2005 budget plan, which will outline his proposed spending cuts, ''that could change reality'' on the tax issue. Berry said one new source of revenue likely to be debated again this year is the expansion of legalized gambling. He said he would readily support allowing the state's four race tracks to install slot machines.

When it comes to state aid to cities and towns, Berry said his advice to municipal leaders is to prepare for the worst.

''When you have to cut $2 billion, everything is on the table,'' he said, observing that the best communities can likely expect is to receive the same level of state aid in fiscal 2005 as they did this year.

''I truly understand'' the difficulties faced by cities and towns, he said. ''We are interfering with people's quality of lives. But there is also a bottom line we have to get to by constitutional mandate,'' he said of the state's obligation to balance its budget.