Beginning in 1980, LaRossa began hosting the weekend drawings for the New Jersey Lottery, which were televised by New Jersey Network at the time. For the next eleven years, LaRossa would draw the nightly Pick-3 and Pick-4 games on Saturday and Sunday nights and also would substitute for weeknight host Hela Young on occasion. This helped make him what The New York Times described as "arguably one of the most recognizable faces in the state". A member of both the American Federation of Television and Radio Artists and Actors' Equity Association, LaRossa had a regular weekend gig as emcee and lead vocalist for an 18-piece swing band called the Lamplighters, billing himself as "the singing Senator".
Political career
LaRossa left the lottery in 1991 to challenge incumbent Senator Gerald R. Stockman. He won by a narrow 50.9%-49.1% margin to become the first Republican state senator to represent Trenton since 1946. LaRossa's victory came in a good year for New Jersey Republicans as they won both houses of the legislature easily. LaRossa faced Stockman for a second time in 1993, as per the state constitution, with the incumbent receiving endorsements from the AFL-CIO, locals of the Communications Workers of America and the New Jersey StatePatrolmen's Benevolent Association. LaRossa won reelection, this time by a margin of 52.3% to 47.7%, in a year that saw the Republicans not only retain their legislative majority but also win the gubernatorial election for the first time since 1985. LaRossa served in the Senate as Chair of the Urban Policy and Planning Committee and as a member of the Budget and Appropriations Committee. Running for a third term in 1997, LaRossa was defeated by Democrat Shirley Turner. Although the Republicans managed to keep control of the legislature and the governorship, LaRossa was one of two Republican Senators to fall to defeat; John Scott in District 36 was the other. In the loss to Turner, LaRossa received 46.1% of the votes to Turner's 53.9%. In the 1996 New Jersey Republican primary for U.S. Senate, LaRossa came in third with 12%, behind three-term Congressman Dick Zimmer who had 68% of the vote and Passaic CountyFreeholder Richard DuHaime with 19%.