One week after actress Elizabeth Banks told one woman’s abortion story on YouTube, the video garnered nearly 300,000 views. When Little Sisters of the Poor went on YouTube under the title “Government forces Little Sisters of the Poor to violate faith or pay IRS fines,” the video captured almost 74,000 views.

In the contest for the hearts and minds of Americans—and, indirectly, of U.S. Supreme Court justices—videos increasingly have become public tools in high-stakes cases.