it'snot like they didn't try.
Bogus Steele dossier shopped about and leaked to CNN by Clapper.
Knowingly using an "unverified" document to support a FISA application ( against FBI policy)
It gets even "deeper" with FISA abuse and un-masking request in the hundreds by Powers of all people.
Obama Administration Rushed to Preserve Intelligence of Russian Election Hacking
the suspicion among many in the Obama White House that the Trump campaign might have colluded with Russia on election email hacks — a suspicion that American officials say has not been confirmed. Former senior Obama administration officials said that none of the efforts were directed by Mr. Obama.
As Inauguration Day approached, Obama White House officials grew convinced that the intelligence was damning and that they needed
to ensure that as many people as possible inside government could see it, even if people without security clearances could not. Some officials began
asking specific questions at intelligence briefings, knowing the answers would be archived and could be easily unearthed by investigators — including the Senate Intelligence Committee, which in early January announced an inquiry into Russian efforts to influence the election.
At intelligence agencies,
there was a push to process as much raw intelligence as possible into analyses, and to keep the reports at a relatively low classification level to ensure as wide a readership as possible across the government — and, in some cases, among European allies. This allowed the upload of as much intelligence as possible to Intellipedia, a secret wiki used by American analysts to share information.
https://www.nytimes.com/2017/03/01/us/politics/obama-trump-russia-election-hacking.html
When disseminating a raw intelligence report, an intelligence agency is not vouching for the accuracy of the information provided by the report’s sources and/or sub-sources.