A light tax burden and contempt for the institution of motherhood? Just another day in the life of the potential first lady. Between fits of demeaning motherhood and revealing the miniscule tax burden she pays on her enormous income, it has been a deservedly terrible week for potential first lady Teresa Heinz Kerry. Tax Troubles Mrs. Kerry released two pages of her 2003 individual income tax form, which expose how she used tax shelters to avoid paying her “fair share” of income taxes. In fact, she contributed a smaller percentage of her income in taxes than most middle class taxpayers. She...