Some in the White House are uncomfortable with the hiring of Marc Kasowitz — Trump's longtime lawyer, who was recently brought on as outside counsel to lead the defense against the Russia probe.

A frequent informal adviser to the White House said:

"There are some people who believe he's the right choice, because he knows the President. And in something like this, it's good to have somebody you know and trust and can tell you: 'I've got your back.' On the other hand, there are people in the building who say that Kasowitz brings out the worst in the President. Kasowitz is a bit of an enabler and spins him up."

Concerns we're hearing about Kasowitz, (who did not respond to requests for comment):