This is abuse of power by Congress. It is political retribution.

The dossier is nothing more than research of a person making a claim to be President of the USA. It is legal. What is to investigate? 

October 28, 2017
By Katelyn Polantz

Fusion GPS, (click here) the research firm behind the dossier containing allegations about President Donald Trump and Russia, its bank and the House intelligence committee have reached an agreement over the panel's subpoena of Fusion's financial records.

The agreement comes amid revelations that Perkins Coie -- the law firm representing Hillary Clinton's campaign and the Democratic National Committee -- and the conservative Washington Free Beacon separately paid the firm to conduct research on Trump.

In a statement Saturday, the House intelligence committee said the agreement "will secure the committee's access to the records necessary for its investigation," while a lawyer for Fusion GPS said "it helped the company honor its legal obligations and protect its First Amendment rights."

Fusion GPS asked the US District Court for the District of Columbia earlier this month to stop its bank from turning over financial records subpoenaed by the House intelligence committee as part of its investigation into Russia's attempts to influence last year's election, including allegations in the dossier of collusion by Trump's presidential campaign....

Fusion GPS didn't break the law. There needs to be a crime in order to bring an investigation. The Congress has the dossier now and there is a great deal to the truth in the dossier. Since when does a Congress carry out political retribution with it's power?

What I find interesting is the fact Russia broke into the DNC emails and published them on "Wikileaks." Why didn't they publish the dossier when they probably had a copy of it.