JUDY WOODRUFF:

There are now multiple investigations into Russian interference in the 2016 presidential election and any possible ties to the Trump campaign.

On Capitol Hill, the probes have expanded to look into possible obstruction and cover-up. There are many questions swirling around.

And we put some of them to Senator Dianne Feinstein, Democrat of California. She's a member of the Senate Select Committee on Intelligence. She's also ranking member of the Senate Judiciary Committee.

I spoke with her a short time ago.

Senator Feinstein, thank you very much for talking with us.

First, about those memos that were written by former FBI Director James Comey, I know your committee has been asking for those. Have you received them yet from the FBI?