There are still a lot of unanswered questions about Rob Porters departure from the White House amid allegations of abuse made by his two ex-wives.

White House principal deputy press secretary Raj Shah failed to offer much clarity during a press briefing Thursday. Here are some questions still worth asking about President Donald Trumps former staff secretary.

How much did White House chief of staff John Kelly know? When did he know it?

Shah didnt offer many details when asked if Kelly knew about the allegations of abuse made by Porters ex-wives.

This is part of an ongoing investigation, Shah said. We trust the background check process, and the chief of staff does not get detailed updates about what may or may not have been alleged.

Politico reported Wednesday that Kelly did know about the allegations, saying he was aware of a protective order against Porter that prevented him from getting full security clearance. CNN also reported that Kelly who on Wednesday praised Porter as a man of true integrity and other White House officials knew about the allegations months before Porter resigned.

Shah would not get into specifics of who knew what and when, but said Kelly had not seen images released by Colbie Holderness, Porters first wife, until they were published Wednesday . The images show Holderness with a black eye, which she said was a result of Porter punching her in the face during a vacation in Florence, Italy, in 2005.

Did Porter resign or was he terminated?

Shah said Porter offered his resignation, signaling he voluntarily left the White House, but also that he was terminated, signaling he was fired. White House press secretary Sarah Huckabee Sanders said Wednesday that Porter resigned , but Shah indicated Porter may have been asked to leave.

This kind of confusion has surrounded other departures from Trumps White House, including that of former aide Omarosa Manigault Newman .

How close was Porters background check to being completed?

Shah repeatedly said allegations against Porter were part of an ongoing investigation. But he didnt offer much clarity about the status of the background check clearance process that was still taking place more than a year into Porters White House tenure. He did confirm that Porter was operating on an interim security clearance before he resigned.

How much has Hope Hicks been involved?

Shah said Hicks, the White House communications director who has been romantically linked with Porter, did recuse herself from some matters concerning the White Houses response to Porters exit. He did not deny that Hicks was involved in drafting the White Houses initial statement on Porter, which CNN reported Wednesday.

Hicks did not get Trumps approval on the White Houses initial statement, in which Kelly called him a friend, a confidante and a trusted professional, Vanity Fair reported Thursday.