Here's an article I found published in 2017 about Eric Ciaramella

On June 11, alt-right blogger Mike Cernovich published an article attacking an assistant to National Security Advisor H.R. McMaster, claiming the previously low-profile civil servant wanted to “sabotage” President Donald Trump.
The piece described Eric Ciaramella as “pro-Ukraine and anti-Russia” and alleged, with no evidence, that he was possibly responsible for high-level leaks. The response to the piece included online threats of violence against Ciaramella, which contributed to his decision to leave his job at the National Security Council a few weeks early, according to two sources familiar with the situation.

Search the web, lots on Twitter, he's a Trump hater.