His civil-rights division filed lawsuits against the voting restrictions imposed by the legislatures in Texas and North Carolina.
The intelligence division filed reports on elected officials who were participating in "anti-R.N.C".
The division filed a record 99 enforcement actions last fiscal year, 74 percent more than the previous year.
The Justice Department's antitrust division filed a lawsuit in January to block the merger.
The division filed a petition last week with the Casino Control Commission to have the alleged boss, Joseph Ligambi, barred from the casino hotels.
Two years ago, the Justice Department's antitrust division filed a lawsuit aimed at forcing Northwest to sell its controlling stake in Continental.
The Universal Music Group, which offered $1.9 billion for EMI's record label division, filed its papers on Feb. 17.
Three weeks later, the New York Police Department's intelligence division filed a secret report claiming to have identified Dennis Christopher Burke, an anarchist, as a bombing suspect.
In May, Matthew Whitley, a former executive in the company's fountain division, filed a lawsuit accusing the company of several improprieties in its fountain division, including accounting irregularities, the creation of slush funds and revenue inflation.
A few weeks later, Chris Larsen, an ally of Mr. Healy's who is also an officer of the marine division, filed internal union charges that Mr. Harrigan had ignored rules that might have prevented the pension fund thefts.
