Yet these investigators didn’t conclude that the president conspired or obstructed justice. So why are Democrats bringing in a reluctant witness to answer questions about work he prefers to let “speak for itself”? Because they’ve wasted six months trying to establish a conspiracy even the special counsel’s team couldn’t find. Now their only hope is that Mr. Mueller will go rogue on C-Span.

Knowing Democrats wouldn’t accept the report’s conclusions until they heard from its author, on April 8 I asked Chairman Nadler to bring Mr. Mueller in to testify later that month. The report has been publicly available for three months, and a poll released last week shows that only 21 percent of Americans and 39 percent of Democrats favor impeachment hearings. Democrats claim Americans don’t support impeachment because they haven’t read the Mueller report and only process information when it’s available on Netflix.

People haven’t read the book, but they’ll watch the movie, explained a Democratic aide. Democrats are giving Americans too little credit. Chairman Nadler’s team has made its arguments — they’re just not compelling.

On March 4, Chairman Nadler started a letter-writing campaign to 81 people and organizations requesting documents intended to uncover “alleged obstruction of justice, public corruption, and other abuses of power by President Trump.” Almost five months have passed, and Judiciary Democrats have apparently unearthed nothing new. The big takeaway from the chairman’s news release summarizing written testimony from Annie Donaldson, who was the chief of staff to Donald F. McGahn II, the former White House counsel, was that her answers were consistent with the report that showed no conspiracy, meaning there was no underlying crime to motivate the president to obstruct justice. To date, the most novel thing Judiciary Democrats have brought out in their investigation remains a bucket of Kentucky Fried Chicken.

In the lonely absence of new evidence against President Trump, Democrats will try to shift the burden of proof from prosecutors to the president. Yet Americans understand our democracy keeps government officials in check by maintaining that everyone is innocent until proven guilty. They understand it’s fair and right that every American — including the president — be allowed to carry out their lives and work without being harassed by malicious allegations.