MINYANVILLE ORIGINAL As US politicians continue to try to work out a deal to avoid the fiscal cliff index futures are pointing to a third-straight sell-off. Stocks slid yesterday especially after Senate Majority Leader Harry Reid said that he was disappointed with fiscal cliff negotiations that were making little progress. Dow (INDEXDJX:.DJI) futures slipped 0.27% 12 827.00. S&P 500 (INDEXSP:.INX) futures fell 0.36% to 1 392.30 and Nasdaq (INDEXNASDAQ:.IXIC) futures dropped 0.29% to 2 633.50. A report on new home sales from the Commerce Department is expected to show that Americans bought new homes at a slightly slower rate ...