Anthony Weiner returns home after he announced his resignation from Congress Thursday, June 16, 2011 in the Queens borough of New York. Weiner resigned from Congress, saying he cannot continue in office amid the intense controversy surrounding sexually explicit messages he sent online to several women. ((AP Photo/Jason DeCrow) Anthony Weiner is very likely running for mayor. (Jason DeCrow/AP)

In a pretty big sign that former congressman Anthony Weiner is planning to run for mayor of New York City, NBC News caught him and wife Huma Abedin filming a video on the stoop of his childhood home.

Weiner reentered public life about a month ago, revealing his potential mayoral ambitions to the New York Times Magazine. He has since put out a policy booklet and done some contentious interviews.

A recent poll suggests Weiner would start the race in second place. But he's already well-known and his unfavorables are high, so he path to the Democratic nomination is unclear. And he's reportedly having difficulty recruiting staffers for his bid. But the video shoot is a good sign that he is forging ahead.

Meanwhile, Democratic front-runner Christine Quinn appears to be trying to soften her own image, opening up about her past bulimia and alcoholism and sharing an excerpt from her forthcoming memoir in Vogue.