Former President Bill Clinton knows just how high the political stakes are in the fight to overhaul America's health care system.

His failed attempt to revamp the delivery of medical care contributed to the Republican takeover of the House and Senate in 1994.

Fast forward to 2009, where health care's white-hot spotlight now shines on the Senate. Clinton is still in the picture, and he's expected to speak to Senate Democrats about health care legislation during their weekly caucus Tuesday, officials said.