Bannon’s Release From Prison Will Unleash an Agitator Into a Heated Campaign

When Stephen K. Bannon reported to federal prison almost four months ago, he left his podcast in the hands of lesser-known pundits and a void in the right-wing messaging machine behind Donald J. Trump.

Soon, Mr. Bannon will be jumping back into the fray.

Mr. Bannon, 70, a podcast host, political strategist and Trump confidant, is set to be released from a federal prison in Connecticut on Tuesday. His newfound liberty drops one of the country’s most influential conservative agitators into the final stretch of a campaign already full of inflammatory rhetoric, anxiety, suspicion and talk of retribution.