From July, 2016:
Candidates poised for classified briefings despite spy agency worries over Trump
By Greg Miller | July 28, 2016. . . .
Amid reports that some intelligence officials have deep reservations about sharing sensitive information with Trump, Clapper said that “it is not up to the administration and not up to me personally to decide on the suitability of presidential candidates. The American electorate is deciding on the suitability of the next commander in chief.â€
But Clapper’s remarks came amid new signs of deep discomfort with Trump among the upper ranks of the intelligence community. In a measure of that growing animosity, one senior intelligence official said Wednesday that he would decline to participate in any session with Trump.
“I would refuse,†the official said, citing not only concern with Trump’s expressions of admiration for Russian President VladiÂmir Putin but seeming uninterest in acquiring a deeper or more nuanced understanding of world events.
“He’s been so uninterested in the truth and so reckless with it when he sees it,†the official said. He and others spoke on the condition of anonymity, citing a desire to speak candidly about domestic political issues that intelligence officials typically refuse to discuss.
https://www.washingtonpost.com/world/national-security/candidates-poised-for-classified-briefings-despite-spy-agency-worries-over-trump/2016/07/28/865cd686-5500-11e6-bbf5-957ad17b4385_story.html?utm_term=.9ad2c3958572
Back in 2016, there were quite a few Democrats including Harry Reid who suggested that Trump be given fake briefings:
Sen. Harry Reid: Give Trump fake CIA intel briefingsDuring an interview, Sen. Harry Reid told CNN's Manu Raju that the CIA should give Donald Trump fake intel briefings and that he "won't know the difference."
https://www.cnn.com/videos/politics/2016/07/28/democratic-convention-harry-reid-trump-fake-intel-sot.cnn