President Barack Obama presides over a six-hour summit of Democratic and Republican leaders today as he tries to get health care reform back on track.

Few people expect an agreement to come from the summit, although anything is possible. If Obama can't bring the Republicans on board, Democratic congressional leaders are likely to try to push a bill past the GOP through a process called, ironically, reconciliation.

Inside, we give you a heads-up on what Democrats and Republicans will be arguing about when it comes to crucial constituencies in the health care debate: working families and seniors. See Page 6A.