Campaigning in Sickness and in Health

ABC News’ Sunlen Miller Reports: At a campaign stop in Iowa City, Iowa Wednesday Michelle Obama opened up her remarks explaining that she was tired because she was up all night with the couple’s youngest daughter who was sick.

"My kids are throwing up at 2am and I’m there with a bucket … so you have to forgive me. I have had literally two to three hours of sleep," Michelle Obama said.

She explained how she feels torn between being a mother and campaigning for her husband, Sen. Barack Obama, D-Ill.

"Those are just the highs and lows of running for president of the United States. No matter what you’re doing these kids still get sick," she said.

Mrs. Obama said she left her youngest daughter, Sasha, at home with her grandmother for the day while she campaigned throughout Iowa.