Senate Majority Leader Harry Reid announced late Thursday that the Senate will vote on repeal of “Don't Ask, Don't Tell” on Saturday.

Saturday's vote is likely to be the final attempt by repeal backers to end the law that bans gay and bisexual troops from serving openly before Republicans takeover the House and increase their numbers in the Senate.

House members on Wednesday overwhelmingly voted in favor of repeal.

Senate Republicans, led by Arizona Senator John McCain, have twice blocked passage of a defense bill that included language to repeal the law.

After the second loss, Connecticut Senator Joe Lieberman announced a standalone version of the bill which eliminates most of the procedural objections cited by Republicans.

Lieberman has said he believes as many as 61 senators might vote for the measure.

Citing a Pentagon report that endorses repeal, Senator Olympia Snowe of Maine on Wednesday joined three other GOP senators – Susan Collins of Maine, Lisa Murkowski of Alaska and Scott Brown of Massachusetts – in announcing her support for lifting the ban.

Of keen interest will be how West Virginia Senator Joe Machin votes. Manchin has been criticized for being the only Democrat to vote against repeal earlier in the month. The 63-year-old newly-minted senator at first said he objected to repeal because he worried about how it would affect military chaplains but later shifted to saying he was unprepared to vote.