LA Times: After months of negotiations and weeks of delay, Sens. John Kerry (D-Mass.) and Joe Lieberman (I-Ct.) will finally unveil their plan to limit greenhouse gas emissions and spur clean energy growth on Wednesday — and the biggest challenge will be selling the notion that the bill has any chance of passage. Kerry and Lieberman’s efforts took a major hit when their Republican co-architect, Sen. Lindsey Graham of South Carolina, walked away from the bill shortly before its scheduled …