As tax day rolls around, hardworking families are meeting their obligations to our nation by paying their taxes. This year, Americans will pay an estimated $2.62 trillion in federal taxes and $1.42 trillion in state-local taxes. But at the same time, the reality is many of the wealthiest Americans just aren't doing their part. Since the Bush tax cuts were signed into law, the nation's top earners continue to get wealthier while middle-class and low-income families are paying more than their fair share. It's time to put an end to the free passes for billionaires and millionaires and make our tax system more fair and equitable for all Americans. That doesn't just mean equality -- though that's vital -- it means making our country great again through valuable investments in our nation's future.