Judy Woodruff:

U.S. intelligence agencies are unanimous in their assessment that Russia interfered in the 2016 presidential election. And senior officials warn of ongoing efforts to do it again in this year's midterm elections.

To examine the threat and what's being done to stop it, I'm joined by two women with recent and extensive experience focusing on voting infrastructure and Russian meddling in the U.S.

Juliette Kayyem worked in the Department of Homeland Security in the Obama administration and led a review of state election systems. And Laura Rosenberger is director of the bipartisan project Alliance for Securing Democracy, which is based at the German Marshall Fund and tracks foreign interference in the U.S. and Europe. During the Obama administration, she worked at the State Department and on the National Security Council staff.

And a note. We invited the current Department of Homeland Security to be on tonight's program, but they were not available.

And I want to welcome both of you to the program.

I'm going to start with you, Laura Rosenberger. Tell us a little bit about the project. We heard the man who heads intelligence for the country, Director of National Intelligence Dan Coats, say last Friday, he said, "Russia has been the most aggressive foreign actor, no question. They continue their efforts to undermine our democracy."

What is your project on the lookout for?