Mayor de Blasio is forging ahead with his reelection bid even amid a flurry of investigations into his political activities. He held a fundraiser Tuesday night in Battery Park City to rally some of his longtime supporters. Political Reporter Grace Rauh has the story.

The mayor is having a tough time. On Monday, three top NYPD officials were arrested for allegedly accepting bribes from a de Blasio fundraiser.

And there are multiple investigations into the mayor's own fundraising and political activities. But despite the challenges, he is raising money for his reelection campaign. He held a fundraiser Tuesday night with supporters.

"I think he's really trying to fulfill what is the philosophy that he put forth and has always stood for," said Joyce Brown, president of the Fashion Institute of Technology.

There are plenty of Democrats mentioned as potential challengers to de Blasio in 2017: City Comptroller Scott Stringer, Brooklyn Borough President Eric Adams, Public Advocate Letitia James, Bronx Borough President Ruben Diaz Jr. and Congressman Hakeem Jeffries.

But at this point it's just chatter — none of them has jumped into the ring.

"I think the mayor has a lot of strong support," said Queens College Professor Ron Hayduk." I think it's unfortunate that some of his enemies have taken him unduly to task."

The mayor's fundraiser was closed to the press but the windows of the restaurant were wide open, so we were able to listen in.

"The reason we were able to achieve full day pre-k for all our kids and after school and paid sick leave and so many other things was the people felt the urgency for change and helped us make those changes," the mayor told his supporters. "And it's a lesson that gets it seems to me forgotten year after year and we have to be reminded of it."

Tickets went for as little as $100. It is the first of a dozen small-scale, low-dollar fundraisers the mayor plans to hold over the coming weeks. As part of that, three City Council members and an Assemblyman will host fundraising events for him in their districts.

Critics of the mayor are privately saying that the investigations are making it difficult for him to raise money. When we asked whether that was the case, a campaign aide noted that a large fundraiser the mayor held last month pulled in $500,000 when public matching funds are included in the tally. The mayor's latest campaign finance filing, which was done in January, showed he had $890,000 in his reelection war chest.