For me, motherhood is a gift and a tremendous source of joy. Yet it’s also the greatest predictor of wage inequality in our country. In 2014, single women without children earned 94 cents on a man’s dollar. Married mothers made only 81 cents.

We all agree that women should have equal pay for equal work, but that’s not enough. The lack of quality, affordable child care is one of the biggest challenges facing American parents.

The current federal policies created to benefit families were written more than 65 years ago when dual-income families were not the norm. Today, however, in about two-thirds of married couples, both spouses work.

In addition, 70% of mothers with children under 18 work outside the home; so do 64% of moms with kids under age 6. The number of households led by single mothers has doubled in the past three decades, and the majority of these women work in low-paying jobs without flexibility or benefits.

My father, in his campaign for president, has proposed a plan to bring federal policies in line with the needs of today’s working parents.