The road to health care reform, it seems, passes through Nebraska, Arkansas and Louisiana. And maybe Maine. Democratic leaders don't yet have the 60 votes required to start formal floor debate on the health care reform bill, but hope that pledges to lower the deficit, improvements to affordability and, in one case, a home-state sweetener, could seal the deal. All but three Democrats - Sens. Ben Nelson of Nebraska, Blanche Lincoln of Arkansas and Mary L. Landrieu of Louisiana - are expected to support the procedural vote required to start debate on the bill that Majority Leader Harry Reid of Nevada introduced this week. The holdouts, all moderates, want a chance to review the 2,074-page bill as debate is scheduled to begin Friday and the first votes are planned for Saturday night.