'There's something not right here': British spies warned the US about 'extensive' contact between Trump team and Russia -- Business Insider:

Britain's Government Communications Headquarters became aware of suspicious "interactions" between associates of Donald Trump and suspected or known Russian operatives in late 2015, The Guardian reported on Thursday.

The Guardian's report - which said other intelligence agencies in Germany, Estonia, and Poland also picked up communications between Trump's associates and Russian agents - is consistent with earlier revelations about what spurred the US intelligence community to launch its investigation last summer into Trump's ties to Russia....
http://www.businessinsider.com/british-spy-agency-trump-russia-ties-2017-4