Final answer:
The alternative magazine published for readers who support the political Left is The Nation, which covers liberal and progressive issues.
Step-by-step explanation:
The alternative magazine published for readers who support the political Left is The Nation. This publication has a long history of liberal journalism and commentary on political and social issues that align with leftist and progressive viewpoints. Magazines like The Nation often engage with topics such as civil rights, government regulation, social justice, and environmentalism, resonating with a left-leaning audience.
As a contrast, publications such as The Conservative, The Libertarian, and The Independent may represent other spots on the political spectrum. For instance, The Conservative may align more with traditional right-wing or conservative ideologies, focusing on limited government and personal responsibility, while The Libertarian could emphasize individual liberty and skepticism of government intervention in personal and economic matters.