Substack, a platform created largely for newsletters, is rolling out a suite of new video creation and editing tools — a sign of how critical video has become to gaining audience on the internet. The ...

Substack co-founder Hamish McKenzie says that creators jumping ship from 'mainstream media' like Jim Acosta, Joy Reid and Mehdi Hasan are a big driver of the growth. By Alex Weprin Senior Editor ...

Bulwark CEO Sarah Longwell on her company's recent success — and why Democrats are struggling ...