EAU CLAIRE, Wis. -- Barack Obama says this week's Democratic convention will help people realize he and his family share their values.

"You'll conclude, 'He's sort of like us,"' Obama told a group of supporters. "'He comes from a middle class background, went to school on scholarships ... he and his wife had to figure out child care and how to start a college fund for their kids."'

The presidential hopeful kept a relatively low profile Sunday, attending services at a Lutheran church before visiting a barbecue at a local rod and gun park.

Polls show a tight race in Wisconsin between Obama and Republican rival John McCain.

Campaign aides said the Illinois senator spoke Thursday to former President Clinton and to Hillary Clinton on Friday morning.