tuesday, accusing chief executive wayne lapierre of misleading nra members on how their money was spent, including trips on private jets. here's pierre thomas. >> reporter: a former top lieutenant is officially declaring war on perhaps the most powerful and best known lobbyists in washington, nra ceo wayne lapierre. >> gun owners across america should be horrified by what i saw inside the nra. >> reporter: in his new book, "inside the nra," joshua powell describes an organization rife with corruption. >> it is this, you know, incredible mess of malfeasance and self-dealing. >> reporter: he accuses lapierre and other executives of misleading dues-paying members of the nra and using their money to finance lapierre's lavish lifestyle. including $542,000 for trips on private jets. >> it is an abomination. it's to the tune of hundreds of millions of dollars in wastage. >> reporter: it's possible crimes were committed, is what you are saying.