here's drew's report. >> reporter: sam is a former business partnerp congressman vern buchanan. e partnership started here at a weed-filled lot. a former auto dealership in north jacksonville, florida. eventually, the two would own four dealerships together. what kind of guy was he? >> you know, mr. buchanan -- i respected him. i believed him. >> reporter: he admits he was naive. he says he soon found out the man he believed in was interested in just two things. money and power. i mean, can you make a judgment call here? do you think this guy should be in congress? >> you know, let's put it this way. mr. buchanan is a very selfish person. and in my opinion, folks who go to congress have got to do good for their people that they represent. >> reporter: kasran presented to cnn the same information, documents and testimony he's now given to federal investigators. the two men had a falling out over finances. they've been suing each other for years. for his part, buchanan says kasran is a disgruntled partner and has lie abod about what happened. at the center of kasran's allegations i

his campaign and business finances are under skucrutiny. >> he is a former business partner of vern buchananthe partnership started here. eventual eventually, the two would own four deeper ships together. >> what kind of guy was he? >> you know, mr. buchanan, i respected him. i believed him. >> he admits he was nieve. he says he soon found out the man he believed in was interested in just two things. money and power. can you make a judgment call? do you think this guy should be in congress? >> you know, let's put it this way. mr. buchanan is a very selfish person. and in my opinion, hopes to go to congress to do good for other people they represent. >> he presented to cnn the same information, documents and testimony he's now given to federal investigators. the two men had a falling out over finances. they've been suing each other for years. for his part, buchanan says kazran is a disgruntled partner and has lied about what happened. at the center of his allegations is a cash swap scheme, cash drawn from buchanan's car dealerships. >> it was to a point i said, gee, we can't give you this kin

cnn tried to catch up with third-term congressman vern buchanan, but he didn't want to say much aboutgation that could possibly put him behind bars. buchanan is a self-made florida millionaire who sits on the powerful house weighs and means committee and is in charge of fund raising for the republican congressional campaign committee. investigators are looking into his business practices, his campaign finances and his alleged attempt to try to stop a witness from talking. now, that witness is stepping forward in an exclusive interview with cnn investigative correspondent, drew griffin. >> sam kazran is a former business partner of congressman vern buchanan. the partnership started here at a weed-filled lot, a former auto dealership in north jacksonville, florida. eventually the two would own four dealerships together. >> what kind of guy was he? >> you know, mr. buchanan -- i respected him, i believed him. >> kazran admits he says he was naive. he says the man was just interested in two things, money and power. can you make a judgment call? do you think this guy should be in congress?

republican verne buchanan is accused of violating campaign finance laws and illegal activities from his politically motivated. >>> we're keeping an eye on the gulf of mexico right now. a storm is brewing. bonnieis here. >> you may see debbie. hurricane hunters are en route to check out this area of low pressure. let's take a look at satellite speshgt i perspective. we have convection or thunderstorms. mainly to the east, you can see this impacting florida a bit. we're getting rain in the area. and a chance for an amount of thunderstorms to develop. take a look at the computer models and take a look at where this storm if it does become debbie may head. our computers models diverge on the track. they're all over the place. anywhere from texas to florida, you have to be on guard. there is hurricane season. this storm could really go anywhere. we're mainly trending, as you see a little bit more to the north. but it definite sli going to be a rain maker as we go through. what is important to note as well is right now the water temperatures are actually one or two degrees above normal of whe

ared at least four separate federal and congressional investigations into florida kickman vern buchan buchananas become an influential figure in the republican party and the congressional campaign committee and sits on the house ways and means committee. investigators are looking into his business practices, campaign finances and an alleged attempt to stop a witness from talking. >>> gm is recalling one of its best-selling small cars. more than 475,000 chevy cruzes are being recalled because of a risk of engine fires. the recall covers all cruzes made from september 2010 and last month. it can modify an engine shield that could create a fire hazard. to christie's auction house in new york where george washington's personal copy of the u.s. constitution and a draft copy of the bill of rights sold for -- drum roll here, $9.8 million. the winning bidder was ann bookout, a regent of the mount vernon association. they were auctioned off in 1976 so you can say the historic documents will now be going home. >>> there's a growing trend among baby boomers, divorcing after decades of marriage. cnn's ath