Over two months before the 2016 presidential election, the head of British intelligence flew to Washington to brief then-CIA Director John Brennan on intercepted communications between the Donald Trump’s presidential campaign and the Russian government, according to a report from the New Yorker.

…Robert Hannigan, then the head of the UK’s Government Communications Headquarters, reportedly alerted Brennan about these likely illegal contacts shortly before the agency received a confidential package that outlined Russian President Vladimir Putin’s direct involvement in Russia’s online influence, disruption, and disinformation campaign that aimed to damage 2016 Democratic presidential nominee Hillary Clinton and help Trump get elected. 

…By August, intelligence agencies were aware that the Democratic National Committee email servers were hacked in July 2016, and the FBI had officially launched an investigation into Trump’s ties to Russia.

UK briefed CIA on Trump campaign contacts with Russia months before election – Business Insider

Apparently the implication that they are both partisan and incompetent is OK with members of the US Intelligence community…