Among the Republicans who supported the bill were three who represent counties that saw local gambling bills pass Friday. They were among the few other measures Miller allowed to come to the floor, as other bills were bottled up in the Rules Committee.
The counties getting their bills were Carroll, represented by Sens. Joseph Getty and David Brinkley, and Dorchester, in the district of Sen. Richard Colburn. All voted aye.
Eight Democrats and six Republicans opposed the bill.
O'Malley was out early Friday morning, stalking the halls of the House office building in his efforts to win passage of the bill in that chamber next week.
The governor met with the Prince George's and Montgomery county delegations amid signs that his efforts and those of legislative leaders were falling into place.
Asked how he assessed the bill's prospects, an ebullient O'Malley said: "I think they're going swimmingly."
Observing the scene was Del. Michael Smigiel, an Upper Shore Republican.
"The governor's walking through the halls smiling, so someone must have succumbed to the water-boarding," he said.
What happens next
House gambling subcommittee will meet at noon Saturday to work on expansion bill.
House meets 10 a.m. Monday for introduction of Senate bill.
After session, House Ways and Means Committee meets to work on the bill.
Senate will meet Tuesday at 7 p.m. to consider any changes the House might make to the bill it approved.