actually far left.
Really, he asked that. People on the far left think they are mainstream and that people in the mainstream are far right wing.
I've posted before that one of the things the left has done well (for themselves, not the country) in the past thirty years, was to move the center of american political thought to the left.
Special accommodations for men who want to shower with women are now mainstream.
Men competing against women in athletics is now mainstream.
Having 32 different genders, is now mainstream.
Sanctuary cities, where politicians decide not to obey the laws of the land, is now mainstream.
Opening our borders, providing food, shelter, medical care AND LEGAL SERVICES to foreigners who came here to abuse our laws and our citizens is now mainstream.
SPYING BY THE FIB ON AN AMERICAN CANDIDATE FOR PRESIDENT OF THE UNITED STATES...is now mainstream.
The head of the CIA having voted for a communist fore president, is now mainstream.
Off the top of my head, some left wing ideas embraced by virtually all of the socialist candidates:
Reparations
Green new deal
Higher taxes
Open borders
Gun control
Sanctuary cities
Impeach or imprison donald trump for ...
Capitulate to china, no tariffs, let them continue to steal our stuff
And i used duckduckgo to "google" some articles. There are several; pick your poison.
https://duckduckgo.com/?q=democrat+candidates+left+wings&ia=news