https://www.npr.org/2018/01/29/5817...memo-withhold-democrats-rebuttal?refresh=true
"Evidence of potential collusion between the Trump camp and Russia has always gone beyond the dossier, including contacts that have been revealed in court documents as part of the investigation by Justice Department special counsel Robert Mueller.
And Washington has already previously hashed out complaints by Trump and Nunes about the abuse of surveillance powers, from Trump's claim that Trump Tower was wiretapped to Nunes' charge that people in the Trump orbit were wrongly "unmasked" by Obama administration officials."