President Barack Obama last month signed an executive order promising to "improve outcomes and advance educational opportunities for African Americans." The order instructs federal agencies to "promote, encourage, and undertake efforts" to increase "college access, college persistence and college attainment for African American students." Unfortunately, his administration remains opposed to the Opportunity Scholarship program in Washington, D.C., which lets students—mostly low-income and African-American—use a voucher to attend a private school.
Perhaps Mr. Obama will reconsider his position on vouchers now that we have for the first time tracked the impact of a voucher program all the way from kindergarten (in 1997) to college enrollment (in 2011). Our study compared students who won a voucher lottery with students who didn't—the only difference between the groups was the luck of the draw, the gold standard in research design.
Chingos, Matthew M., and Paul E. Peterson. "A Generation of School-Voucher Success." Wall Street Journal, August 23, 2012.