An addendum to last week’s intelligence briefing claims surrogates of Donald Trump, and the Russians, were exchanging information during the 2016 campaign and it was highly likely Russia interfered with the election.

Russian operatives also claim to have compromising personal and financial information on Donald Trump. This information comes from a British operative who the US intelligence agencies believe to be credible.

A synopsis reported today was not part of the original intelligence briefing on cyber-activities during the election, but is said to further augment the case against Russia. It’s also been discovered that the Russians had hacked into information on both candidates, but only used information they had on Hillary Clinton.

One reason the nation’s intelligence chiefs took the extraordinary step of including the synopsis in the briefing documents was to make the President-Elect aware that such allegations involving him are circulating among intelligence agencies, senior members of Congress and other government officials in Washington, multiple sources told CNN.

Former Senate Democratic Leader Harry Reid sent a letter to FBI Director James Comey in October of last year stating, “It has become clear that you possess explosive information about close ties and coordination between Donald Trump, his top advisors, and the Russian government — a foreign interest openly hostile to the United States,” a CNN reports states. CNN further stated it confirmed that Trump was made aware of the synopsis in his briefings last week, but it is not known if the matter was discussed between Trump and agency officials at that time.

The synopsis was a 35-page report, and two pages contained the information about the exchange of information between Trump’s operatives and the Russians. Some of the memos contained in the synopsis was in circulation on Capital Hill as early as this past summer, but that was before US intelligence agencies had confirmed information from the British operative.

The information released today was considered to be too sensitive to include in the original report about the Russian cyber-activities in the 2016 election.

Trump’s transition team has declined to comment, but said they were working on a statement.