Portside

An open letter to the voters of the United States...We believe it is our responsibility to use our platforms to bring attention to the dangers of a Trump presidency, and to the real and present threats of his candidacy. Initiated by 100 artists, actors, musicians, DJs, writers, directors, performers...

The choice between the racism and nativism of Donald Trump, a man clearly unfit to be president, and Hillary Clinton could not be more clear. Bernie Sanders has it right: The first task of his continuing political revolution is to make certain that Trump loses, and loses badly.

Astrobiologists debate which chemical signatures would hint at life on other worlds.

The political revolution will continue after Election Day – if you stay involved.

Fear and Acceptance at the Democratic Convention. Most Lives Matter. Al Franken Get Donald Trump, to a T. Wasserman-Schultz Still Faces Primary Challenge. The Protein Folding Revolution.

Reader Comments: Sanders and the Democrats - Inside and Outside; #BlackLivesMatter - Baltimore, Freddie Gray, Police Incitement; Trump - the Myth of Working Class Support, Whiff of Fascism; Turkey and Nuclear Weapons; Black Athletes Speak Out; Zika; Israel; Announcing - Women's Boat to Gaza is Now a Reality; and more...

Sixty miles south of the Arizona border, the devastation from a toxic spill has led to an epochal battle between a transnational mining conglomerate and an alliance of miners and farmers.

AFL-CIO leaders have reached out to union members in support of actions that can be taken to stop and prevent police killings of people of color. Racism plays an insidious role in the daily lives of all working people of color. This is a labor issue because it is a workplace issue; it is a community issue, and unions are the community. Philando Castile was a union member, and so his family is our family. Ideas of what you can do from labor activists.

Elected officials operate within the parameters of possibility. Movement politics is about redefining those parameters. Whoever is elected in November - even Trump - takes office in a country percolating with organized discontent at inequality, climate change, Citizens United, police violence. That's movement politics.

Throughout the twentieth century, liberal wisdom held that "socialism" or a social-democratic political formation could not be viable in America. Future historians may look back at the 2016 Sanders campaign as a great wave that swept away this old wisdom. But that new history will be written only if activists seize the opportunity before us to build, from the enthusiasm and activism of the Sanders campaign, enduring organizations.