(CNN) - CNN has confirmed that former Democratic presidential candidate John Edwards will endorse Barack Obama shortly at a Michigan campaign event.
The endorsement could help Obama reach out to white, blue-collar voters - a demographic group that Obama has failed to capture, most notably in the recent Pennsylvania and West Virginia primaries.
Edwards received 7 percent of the vote in Tuesday's West Virginia contest.
The former North Carolina senator had campaigned on the message that he was standing up for the little guy, the people who are not traditionally given a voice in Washington, and that he would do more to fight special interests.
After dropping out of the race on January 30, Edwards asked both Clinton and Obama to make poverty a central issue of the general election and a future Democratic administration, something both agreed to do.