He said veterans organizations such as the American Legion, Veterans of Foreign Wars and Disabled American Veterans support keno.
“They want this in their posts,” Baldasaro said.
Rep. Steve Vaillancourt, R-Manchester, warned that because keno would be allowed where alcohol is sold, people could be playing under the influence.
He also saw keno as a big change for gambling in the state.
“This is a massive expansion of gambling,” Vaillancourt said.
Proponents said the bill would set aside 1 percent of keno revenue for treatment of problem gamblers.
The Lottery Commission would oversee development of keno rules and regulation.
Keno is a game of chance in which players pick a series of numbers they hope will match computer-generated winning numbers.
In Massachusetts, players select one to 12 numbers, while the computer picks 20 different numbers between one and 80.
Players can bet throughout the day. Massachusetts ranks first in the nation with $790 million in keno revenues.