The democrats did not ralize that by pushing the investigation that they have opened themselves up. That is why Comey stated that the investigation is open. When he releases the findings, rhey might like who is on the list - like The Clintons, Obama and all the rest...
President Trump played these gorfs like a fiddle. All he had to do was complain about being under surveillance, and they did the rest. They demanded investigations. They mocked him, some demanded proof, and some called him a liar. Now the fat is in the fire, and they aren’t liking it.