That so many Americans still support him — support the alienation of our allies, the destruction of our values, the death of democracy — has both incensed and frightened me. We’ve seen this movie before; it doesn’t end well.

Sheila Levin

New York

The writer is former assistant director of the American Jewish Congress.

To the Editor:

Re “Trump Is Remaining Competitive if Not Popular” (front page, Nov. 5), about polls showing that the president is “highly competitive” against the three top Democratic candidates in battleground states:

A year out from the presidential election the Democrats are already making many of the same fatal mistakes they made in 2016. Elizabeth Warren, whatever her merits as a leader, will never beat Donald Trump in the general election. She, like Hillary Clinton before her, is perceived as too liberal by too many voters. Furthermore, I believe there is little either Ms. Warren or her supporters can do to change this perception over the next 12 months.

On the other hand, Joe Biden is seen as too moderate and ineffectual by many in the party. What will Warren supporters likely to do should Mr. Biden get the nomination? Just what they did in the last election when their favorite son, Bernie Sanders, failed to get it — stay home in protest.

All the while, President Trump and his people are lapping it up. Right now, things are going far better than even they dared hope.

Joe Elliott

Asheville, N.C.

To the Editor:

It ’s abundantly clear by now that it is futile for the Democrats to try to win over President Trump’s supporters. But there is another way they can win the battleground states, and with them the election: by taking advantage of the surplus of Democratic voters in California and New York. In 2016, the Democrats won those two states by a total of six million votes. If enough of these voters moved to the battleground states — retirees being the most obvious candidates — Mr. Trump would be defeated.