Street was found guilty of failing to file tax returns for three years -- 2002, 2003 and 2004. He testified during trial he believes that income tax is unconstitutional, but the jury didn't buy that explanation.
And the jury could not reach a verdict on whether Street, a former Pennsylvania state senator, had assisted in the filing of false tax returns -- under-reporting his income for the tax years 2000 and 2001.
A co-defendant also charged with fraud and conspiracy in connection with the airport contracts was acquitted of all charges.
A relieved Milton Street says it was a long, exhausting, and humbling experience:
"No corruption, no fraud. No corruption, No fraud. Failure to file is something that I was found guity of, but as long as there was no corruption and no fraud and no wrongdoing, then I am happy."
Outside the courtroom, federal prosecutor Jennifer Williams concentrated on the convictions her team obtained. She said that Street now faces the possibility of 2-3 years in prison when he is sentenced in May. She says the government has not decided whether to retry him on those charges for which the jury could not reach a unanimous verdict.