Ann Romney's struggles with multiple sclerosis kept her away from her husband's campaign shortly before Super Tuesday.
The wife of the presumptive GOP's presidential nominee, Mitt Romney, told "Entertainment Tonight" about a "health scare" she had in the days leading up to the marathon day of primaries in March.
"I was quite fatigued, and I knew I couldn't quit. I didn't tell anybody I was tired," Romney said.
As she continued her work on the campaign, she said her symptoms worsened.