State Senate Majority Leader Dean Skelos and his son turned themselves in on Monday in connection with a federal public corruption investigation.

The Long Island lawmaker was seen walking into the FBI's New York headquarters in Lower Manhattan just before 9:30 a.m.

According to the six-count complaint by U.S. Attorneys, the Skelos' are described as acting in tandem trying to steer government contracts to benefit AbTech, an Arizona company that hired Adam Skelos to win contracts to help alleviate stormwater on Long Island.

The complaint details how Senator Skelos is accused of taking official actions to benefit that company and a Manhattan real estate firm. 

Adam Skelos, 32, is also accused of using a burner - a disposible cell phone. His father also warns that the son should stay away from lobbying state senate colleagues, saying the atmosphere had grown too hot.

There are also several wiretaps with some colorful - even salty - language that are highlighted in the complaint.

In the wake of a storm that hit Long Island, Adam Skelos says to Dean Skelos according to the transcript, “We got some major problems here with all the flooding going on…I love it! Keep it coming Mother Nature! Keep it coming!” Both men laugh and then Dean Skelos replies, “It will.”

In another conversation, Adam Skelos talks about how he feels U.S. Attorney Preet Bharara is listening in to every phone call. 

"By now two things should be abundantly clear. First, public corruption is a deep seated problem in New York State. It is a problem in both chambers. It is a problem on both sides of the aisl. And second, we are deadly serious about tackling that problem," Bharara told reporters Monday.

Skelos first came to the state senate in 1984. He became Republican leader in 2008.

Skelos joins a number of other elected officials either accused or convicted of federal crimes. 

Earlier this year, Assembly Speaker Sheldon Silver was indicted on federal charges also brought by Bharara. 

Silver has pleaded not guilty. He remains a Manhattan assemblyman but has stepped down from his assembly leadership position.  

This latest corruption chapter obviously complicates what can be done at the end of this legislative session. The budget has been passed. But other legislative items remain including renewing mayoral control of New York City schools. 

Also there are rent regulations and property tax changes that also were expected. 

Bharara has made it clear that he will take on a so-called culture of corruption in Albany wherever it takes him.

Skelos said last month that he is cooperating with the investigation and has no plans to step down.

In a statement, he said, "I am innocent of the charges leveled against me.  I am not saying I am just not guilty, I am saying that I am innocent.  I fully expect to be exonerated by a public jury trial."