Well, the whistleblower is outed his name is Eric Ciaramella , an obama holdover who worked with Biden , John brennan, and actually helped dig up dirt of the trump campaign during the 2016 election.
Now we know why they didn't want his name out there.
Here's a little more about him...
A CIA officer specializing in Russia and Ukraine, Ciaramella was detailed over to the National Security Council from the agency in the summer of 2015, working under Susan Rice, President Obama’s national security adviser. He also worked closely with the former vice president.
Susan Rice: Ciaramella worked under Obama's national security adviser.
AP Photo/Carolyn Kaster, File
Federal
records show that Biden’s office invited Ciaramella to an October 2016 state luncheon the vice president hosted for Italian Prime Minister Matteo Renzi. Other guests included Brennan, as well as then-FBI Director James Comey and then-National Intelligence Director James Clapper.
Several U.S. officials told RealClearInvestigations that the invitation that was extended to Ciaramella, a relatively low-level GS-13 federal employee, was unusual and signaled he was politically connected inside the Obama White House.
Former White House officials said Ciaramella worked on Ukrainian policy issues for Biden in 2015 and 2016, when the vice president was President Obama's "point man" for Ukraine. A Yale graduate, Ciaramella is said to speak Russian and Ukrainian, as well as Arabic. He had been assigned to the NSC by Brennan.
He was held over into the Trump administration, and headed the Ukraine desk at the NSC, eventually transitioning into the West Wing, until June 2017.