The basic tenets of democracy are a promotion of the truth instead of constant lies, and a trust in the leadership of government, that who is in power can be seen as acceptable to have power.
On both counts, Donald Trump fails miserably.
The man tells more lies than any President or any political figure in American history.
He refuses to admit any errors or mistakes, and never apologizes.
He cannot tolerate opposition, which is basic to any democracy.
He terrifies millions of Americans, who are fearful of the effect he is having on our system of government, and sense that he is going to lead us into World War III.
He consorts with dictators in Egypt, Turkey, the Philippines, Russia, and elsewhere, and overtly praises the strong man leadership in nations, while attacking our allies in democracies.
He is dismissive of women, and one can see that his mixed relations with Great Britain and Germany are due to their having women leaders, Theresa May and Angela Merkel.
He is on the way to being rated the absolutely worst President in American history, and raising the image of failed or terrible Presidents, including Richard Nixon, George W. Bush, Andrew Johnson, James Buchanan, Franklin Pierce, and Warren G. Harding.
Donald Trump is a menace to American democracy and world peace and order.