The Progressive-Democratic Party and the Left in general no longer believe in democracy, whether republican or popular.  Here’s Robert Reich, Labor Secretary in the Clinton administration:

The title of his piece is the gist of the position: Don’t Impeach Trump, Annul His Presidency.  Read past the irrational hysteria in his first several paragraphs, hysteria like this:

Even if he loses in 2020, we’ll be fortunate if he concedes without being literally carried out of the Oval Office amid the stirrings of civil insurgency.
Oh, and let me remind you that even if he’s impeached, we’d still have his loathsome administration—Pence on down.

and you get to the meat of his—and their—demand.

Suppose, just suppose, Robert Mueller finds overwhelming and indisputable evidence that Trump conspired with Putin to rig the 2016 election, and the rigging determined the election’s outcome.
In other words, Trump’s presidency is not authorized under the United States Constitution.
…
What then? Impeachment isn’t enough.

He went on:

Impeachment would remedy Trump’s “high crimes and misdemeanors.” But impeachment would not remedy Trump’s unconstitutional presidency because it would leave in place his vice president, White House staff and Cabinet, as well as all the executive orders he issued and all the legislation he signed, and the official record of his presidency.
The only response to an unconstitutional presidency is to annul it. Annulment would repeal all of an unconstitutional president’s appointments and executive actions, and would eliminate the official record of the presidency.
Annulment would recognize that all such appointments, actions, and records were made without constitutional authority.
The Constitution does not specifically provide for annulment of an unconstitutional presidency. But read as a whole, the Constitution leads to the logical conclusion that annulment is the appropriate remedy for one.
After all, the Supreme Court declares legislation that doesn’t comport with the Constitution null and void, as if it had never been passed.
It would logically follow that the Court could declare all legislation and executive actions of a presidency unauthorized by the Constitution to be null and void, as if Trump had never been elected.
The Constitution also gives Congress and the states the power to amend the Constitution, thereby annulling or altering whatever provisions came before. Here, too, it would logically follow that Congress and the states could, through amendment, annul a presidency they determine to be unconstitutional.
…
[The Trump Presidency] should be annulled.

Here are the Party and the Left—anyone from either of the two heavily overlapping groups—decrying their man’s demands.  By their studied silence are they known to agree.  That Reich’s piece is so irrational does not bother them in the least.  Nor does his desire to completely rewrite history to a depth and breadth that would shame the leadership of the erstwhile Soviet Union and the ongoing People’s Republic of China.

That irrationality, however, is a threat to our great republican democracy.  Remember this in the fall.