Third, plenty of Democrats viewed the Mueller probe as a confirmation, not an investigation. They already knew that the Trump campaign had to have colluded, so it was just a matter of time before the special counsel would confirm it. What they got instead appears to have been (although we won’t know this until we see more from Mueller’s report) a genuine search for evidence of collusion that came up empty.

Source: Los Angeles Times March 25, 2019 18:00 UTC