With tomorrow’s expected cloture vote in the Senate on legislation that would grant the District a voting seat in the House of Representatives, voting rights activists are going full-steam to round up the needed 60 votes for the measure. DC Vote is holding a National Call-In Day to encourage supporters of D.C. voting rights to phone their senators and voice their support for the legislation. They’ve set up a toll-free number that anyone can use (1-888-999-6775) until 8 p.m. And looking to sway their own party, the D.C. Republican Committee has sent letters to their party’s senators and met with a number of them and their aides. Short of any toxic amendments being thrown into the mix, the legislation looks to have the votes to surpass a filibuster. But as we have learned over the years, we’ll believe it when we see it. The cloture vote is scheduled for tomorrow; a final vote on the legislation could come later this week or early next week.