“A nod to Class III gaming, as slots are classified, is the first of several required steps outlined in the federal Indian Gaming Regulatory Act, which gives a federally recognized American Indian tribe the right to open a casino.

“And with one recognized tribe already in Massachusetts — and possibly more in the pipeline — approving slots is essentially a green light for casinos.

“?But with another slots vote scheduled in the House for April 5 — and with many gambling supporters claiming to have the majority this time — the possibility of an Indian tribe pursuing a casino could be more real than ever. Last October, the Senate overwhelmingly approved a bill that would grant licenses for up to 8,000 slot machines in the state.

“Rep. Charlie Murphy, D-Burlington, who opposes legalizing slots, said most lawmakers realize a vote in favor on April 5 opens the door to casinos?”