The labor secretary for former President Bill Clinton calling on the left to start an impeachment movement against President Trump -- and he's even raising money on it.

Robert Reich emailed millions of MoveOn.org supporters Tuesday with this message:

"The path to winning in 2018 (and thereafter) begins with Democrats in Congress showing the American people that they have the courage and backbone necessary to take back our nation. It means calling for the impeachment of Trump and holding politically accountable every single person in his administration and in the House and Senate who have enabled his disgrace of a presidency," he wrote.

His money line: "I know that impeachment won't happen quickly. It's going to take a strategic, painstakingly executed campaign—hallmarks of MoveOn's excellent organizing. Will you join me by making a donation of $5 a month to MoveOn to make this happen?"

Top Democrats have shied away from pushing for impeachment and several legal authorities said that there is nothing to build a case on.

But that hasn't stopped the left's most outspoken populists like Reich, who initially backed Sen. Bernie Sanders in 2016 before supporting Hillary Clinton, from trying.

"It's time to go on impeachment," he urged, offering MoveOn's case as a starting point:

MoveOn staff just briefed me on their plans for their impeachment campaign, and I'm impressed. Their plans include the following:

Exposing and shining a spotlight on the hypocrisy of Republicans who cover up for Trump and his team—with a particular focus on the 23 Republicans in districts that voted for Hillary Clinton last year. These lawmakers are vulnerable when they run again next year, so much so that one, Representative Carlos Curbelo of Florida, took care to point out to the media that he was "the first Republican to mention impeachment."

Continuing to drive down Trump's popularity. Already, Trump's unpopularity is at a record high, not far from where Nixon's was at the time of his own resignation. The fact is that when Trump is an albatross around the neck of Republican politicians, they will turn on him, making impeachment a political reality as well as a Constitutional necessity.

Urging Democrats to demand the truth—matching the passion I'm seeing in the grassroots base.

Paul Bedard, the Washington Examiner's "Washington Secrets" columnist, can be contacted at pbedard@washingtonexaminer.com