But how exactly are they cheating?

A man who sold himself a $1,000,000 winning D.C. Lottery ticket is just one of many retailers a WUSA9 investigation found winning the lottery at rates statisticians say border on impossible.

At least three retailers won the lottery around 100 times according to an analysis of D.C. Lottery records obtained under the Freedom of Information Act.

“$10,000, $5,000,” Lounes Issaad said about some of his 27 payouts that averaged $30,000 each.  “I don’t have nothing to hide.”

…Our investigation found lottery retailers make up at least three of the top five D.C. Lottery frequent winners – all with about 100 wins or more.

There is more here (the link makes some noise), via Michael Rosenwald.