A new political advocacy group that vowed to put $5 million behind an effort to stop Judge Brett Kavanaugh’s confirmation to the U.S. Supreme Court has significant ties to the liberal financier George Soros. A Daily Caller News Foundation review has found that the group’s primary financial supporter is a nonprofit to whom Soros has given millions. The group, Demand Justice (DJ), is organized and financed by a 501(c)(4) called the Sixteen Thirty Fund, which collected some $2.2 million in contributions from the Open Society Policy Center (OSPC), one of Soros’ primary donation vehicles, between 2012 and 2016. The Soros...