First lady Michelle Obama is seeking $10 donations to protect Obamacare, her husband's troubled health insurance system. Just one day before he gives the annual State of the Union address, the first lady sent out a fundraising email to supporters hoping to use the speech to prompt donations to help Democrats in the midterm elections this fall. [Text of email]Friend — Earlier this month, because of what you did, it became illegal for insurance companies to discriminate against the up to 129 million Americans living with pre-existing conditions....