Silent Coup by Robert Vaughan
The Slack Team is a highly capable group of men and women, each of whom bring a special skill to the mix in order to right wrongs. They undertake special jobs for the CIA, Homeland Security, and FBI that are outside the normal scope, jobs that if not for Peter "Tank" Tankoff and the Slack Team, would fall through the cracks.
Need a North Korean missile test sabotaged, A terrorist taken out in a non-cooperative foreign country, hostages rescued, or pirates at sea killed? Call The Slack Team.
In THE SILENT COUP, a Machiavellian billionaire attempts to use his money and control of media to overthrow the President of the U.S. and establish himself as the de facto ruler of the country. His plans are thwarted by The Slack Team.