We recently presented a look at some of the most notorious financial felons of contemporary times.

Since then, news has included the indictment of Mark Cuban for insider trading in a case that is somewhat reminiscent of Martha Stewart's case. According to the SEC, the billionaire entrepreneur asked his broker to sell all his shares of Mamma.com after the company's CEO confidentially told him of an impending stock offering that would dilute the value of all existing shares. By selling before the information became public, Cuban is said to have sidestepped losses of more than $750,000. Cuban insists, though, that no agreement existed to keep the information confidential.

And then there was the indictment in Texas of Vice President Dick Cheney, along with former U.S. Attorney General Alberto Gonzales and others. There seems to be a conflict of interest between the vice president's influence on the federal agency that oversees federal immigration detention centers and his substantial holdings in Vanguard Group, which invests in private prison companies. But does the lame-duck county district attorney, who was a no-show in court, have the authority to bring charges against federal officials with regard to federally run institutions?

This post is part of a feature in which he wonder whatever happened to some notorious financial felons. See all 17.

I thought we'd have heard more about Charles Keating over the last few weeks of the 2008 presidential election, but much to my surprise the Obama campaign refrained from mentioning him. Keating was once the chairman of the Lincoln Savings and Loan Association, the infamous bank at the center of the S&L scandal of the 1980s; that scandal featured none other than John McCain, one of the "Keating Five" group of disgraced senators and more recently the Republican Party's nominee for president. But McCain's connection to Keating didn't seem to play a role in the 2008 election, and McCain lost the race for reasons other than being connected to one of the great financial crooks in recent memory.

To be fair, Keating was not a big fan of John McCain. He reportedly called him a "wimp" behind his back, accusing him of lacking the courage to fight the regulators who sought to reign in Keating's bank. McCain, along with John Glenn, were cleared by the Senate Ethics Committee of impropriety in their relationship with Keating, though they were publicly criticized for exercising "poor judgment." McCain later said that trying to help Keating was "the worst mistake of my life," though he didn't seem too upset about riding around the Caribbean on Keating's private jet.

Yesterday I speculated that McCain picked Sarah Palin as his VP over the objections of his advisers. I thought that McCain -- who prides himself on fighting corruption in politics -- somehow saw himself in her. But both politicians have experience with the very thing they pride themselves on fighting.

In the case of McCain, his efforts to rid politics of the corrupting influence of corporate money followed his protection of Charles Keating who was securing a real estate deal for his wife, Cindy. The bankruptcy of Keating's S&L cost taxpayers $3.4 billion. More recently former McCain Finance Chair Tom Loeffler, a lobbyist for French company EADS, parent of Airbus, helped it and Northrop Grumman (NYSE: NOC) to prevail in a $35 billion competition for airborne refueling Tankers in February over Boeing Inc. (NYSE: BA) before the General Accounting Office (GAO) concluded that the process was flawed.

Alaska's governor, Sarah Palin, knows a thing or two about lobbyists. The New York Times reveals that she won that post after taking on bribery charges from the oil industry against politicians -- her attack against such corrupting influences helped her prevail over former Alaska governor, Frank Murkowski. That's why it came as a surprise to learn that as governor Palin employed a lobbyist for an energy company for which she procured $500 million in state subsidies so it could build a gas pipeline.