The never before utilized Section 4 of the 25th Amendment to the U.S. Constitution (full text posted below) may provide the most efficient lawful means to facilitate a swift end to the madness brought on by the Presidency of Donald J. Trump.
The real issue is not whether Donald Trump --- an utterly dishonest raging authoritarian narcissist and "pathological liar" --- should be removed from office. Instead, the focus should be on which of two alternative constitutional means for removing this miscreant from office has the best chance of ultimately succeeding.
Impeachment is a cumbersome process that, assuming the GOP-controlled Congress would permit it, entails lengthy investigative hearings, and the introduction of Articles of Impeachment alleging High Crimes and Misdemeanors --- Articles that must be approved by a majority of the House. This would be followed by a trial in the Senate. Trump would then be removed from office only if two-thirds of the Senate votes to convict. Tall orders for both Republican-majority chambers, to say the least.
Throughout the length of those protracted proceedings, Trump would remain in office with access to the nuclear codes.
In his recent New York Times op-ed, Nicholas Kristof, quoting Harvard's renowned Constitutional Law Professor Laurence Tribe, opined that the 25th Amendment offered a viable means for removing Trump from office. Per the language of Section 4 of the 25th Amendment, if Vice President Mike Pence and a majority of Trump's own cabinet transmitted to the leaders of the House and Senate "their written declaration that [Trump] is unable to discharge the powers and duties of his office, the Vice President shall immediately assume the powers and duties of the office as Acting President." The burden would then shift to Trump to submit "his written declaration that no inability exists." If he submits a declaration contending that he is able to carry out the duties of his office, Trump would not be permanently removed unless two-thirds of both Houses of Congress upheld the Vice President's declaration.
Irrespective of the legal bases for impeachment --- such as Trump's corrupt and remarkably overt violations of the Constitution's Emoluments Clauses --- it is unlikely that a GOP-controlled Congress would be willing to entertain, let alone vote to impeach a Republican President. This would especially be true if, as is likely, the Articles of Impeachment were introduced by Democratic members of the House.
By contrast, as observed by Lawrence O'Donnell during a Feb. 20 airing of The Last Word (see video below) --- if successfully invoked, the 25th Amendment would pit Republicans against Republicans: to wit, Vice President Mike Pence and a majority of the cabinet against Trump and a minority of the cabinet. If the chaos that is the Trump administration continues and potentially threatens GOP majority rule in either or both houses of Congress in 2018, there's a distinct possibility that, as predicted by Sen. Charles Schumer (D-NY), the dynamics within the GOP could undergo a significant change. If he could overcome loyalty to the man who named him as his running mate, Pence and a majority of the cabinet could legally initiate a swift end to the Trump presidency.
That's a lot of "ifs"...and even if they all came to pass, there is more to think about regarding this path...