With results from the Iowa caucuses held up Tuesday morning, former Deputy U.S. Attorney General Rod Rosenstein spoke to attorneys and technology experts at ALM’s Legalweek conference in Manhattan about what he learned from leading the Department of Justice investigation into 2016 election interference.

“What we saw (in the probe into Russian hacking) was the impact that a concerted effort can have on, No. 1, the integrity of the system, but No. 2, public confidence in the integrity of the system,” he said.