Frustrated House Democrats Pin Their Hopes on Mueller
Democrats’ big fear — expressed during interviews with two dozen lawmakers over the past week — is that public interest in the Mueller report is ebbing. Any appearance by Mr. Mueller, however noncommittal or boring it turns out to be, is one of the only means to snap the issue of Mr. Trump’s actions back to center stage, they said, along with testimony from someone like Mr. McGahn.
https://www.nytimes.com/2019/05/16/us/politics/impeaching-president-trump.html