The brazen act was caught on camera.
The man in the video pulls down a campaign poster and is wearing a t-shirt displaying the name of a political opponent, Tiffanie Fisher.
The man not only takes down the sign, but rifles through a mailbox and may be looking for other political material.
The political sign that was torn down was from the campaign of Dr. Michael Russo.
"It was one of the first things I said that I was going to run a very positive campaign, and I'm continuing to do that. But when there's criminality involved, it needs to be pointed out, it needs to be investigated, and that's what we're doing," Russo said.
Russo and Fisher are two of the six candidates running for mayor of Hoboken.
Both are on the Hoboken City Council and their race has taken a nasty turn with Russo wondering if this tactic has been used before by Fisher's team.
"Are you instructing the rest of the campaign to do the same thing? What are you looking for? Because you clearly went into that building with some criminal intent, whether it was just to rip down a sign or to go into that mailbox," Russo said.
The fact that Fisher's campaign worker was involved in tampering with mail has left her with no option but to fire her long-time supporter.
"It is someone who has been working for us and it was terrible to see it on video. We've held him accountable; he's no longer with our campaign," Fisher said.
Fisher called the case of vandalism a one-time mistake.
Russo comes from a political family. His father was the mayor of Hoboken, but was indicted on bribery and mail fraud charges.
Fisher says she is running a campaign based on intergrity and is upset that this act of tampering targeted Russo.
She says it's ironic since Russo's father was accused of bribery and mail fraud when he was the mayor of Hoboken.
Fisher says she talked to the staffer seen rifling through the mail and questioned his intent.
"He saw one and just saw, you know, Mailer from a competitor and was just like looking at it. But still, you don't put your hand in a mailbox, right?" Fisher said.
Russo wants to know if Fisher's campaign staff was trying to take mail in ballots which would deny a residents right to vote, or looking to fill it out without consent, which would be fraud.
The case is now being investigated by police and postal inspectors.
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