The Senate is expected to vote on the Dream Act amnesty at around 2:30 today. Numbers USA reports that Voinovich will vote against it (even though he backed the big amnesty bill in 2007) and LeMieux and the ladies from Maine have said they’ll vote no unless more amendments can be entertained on the floor — such as adding enforcement measures to the Dream Act, something the advocacy groups are categorically against. Losing the vote, if that’s what happens, won’t provide them with a cudgel to beat Republicans, as they seem to expect — instead, it’ll foreclose any consideration of amnesty for years to come. Anything’s possible, of course, but I expect this to be Pickett’s Charge for the pro-amnesty side.