GRAFTON, W.Va. (AP) -- Hillary Rodham Clinton toured the birthplace of Mother's Day in rural West Virginia, offering Democrats a subtle reminder Sunday that her fading candidacy remains strong among women and blue-collar, white voters.

That loyal base is expected to carry Clinton to a sizable victory in the primary on Tuesday, though it won't do much to close the gap between her and Barack Obama, her rival for the Democratic presidential nomination. Clinton's lingering candidacy highlights not just her strengths but also how difficult it has been for Obama to make inroads among some key Democratic constituencies.

Clinton made a brief afternoon visit to the home of Anna Jarvis, who is credited with founding Mother's Day 100 years ago. Clinton spoke to reporters afterward and told stories about women who have changed history by pressing for equal rights and breaking into male-dominated careers.