But the prosecutor's office says emails being used in the investigation were properly obtained. President Trump, returning to the White House on Sunday, said when asked about the emails: "Not looking good. It's not looking good. It's quite sad to see that. My people are very upset about it. I can't imagine there's anything on 'em, frankly, because as we said, there's no collusion. There's no collusion whatsoever. A lot of lawyers thought that was pretty sad."
What's new: A source close to Trump's transition, which still exists as a legal entity so it can shut down what was once a 1,000-person operation, said the transition will send a letter to Mueller informing him that some of the emails are privileged, and asking for their return. The transition says it is willing to provide Mueller with vetted emails.
The source told me: "What they did is totally illegal, and they need to fix it."