Conley says Trump "may not entirely be out of the woods yet"

Q: Can you tell us when the president had his last negative test?

CONLEY: I don't want to go backwards

"As far as travel goes, we'll see " -- Conley won't rule out Trump returning to the campaign trail

"There are HIPAA rules and regulations that restrict me in sharing certain things for his safety and his own health and reasons" -- Conley won't talk about what Trump's lung scans show

The WH clearly has a reason to stonewall questions about when Trump's last negative test was. It should be a really straightforward thing to answer. The refusal to provide info suggests Trump either wasn't being tested regularly at all, or had a positive test earlier than known