The Rev. Al Sharpton has made himself known in the community of Ferguson, Missouri, in the days since an unarmed black 18-year-old was shot and killed by a white police officer.
He has marched with protesters and preached to a packed church. On Monday, Sharpton is scheduled to speak at the funeral for Michael Brown following a weekend rally.
Allies and critics of Sharpton say the recent weeks are a testament to his ability to stand at the intersection of advocacy and controversy, seizing the moment regardless of setbacks.
The 59-year-old has acknowledged "mistakes" and has had past problems with the IRS.
But Sharpton has moved to fill the void left by the Rev. Jesse Jackson, who has been less visible in recent years.