For James, the end came when a turncoat gang member in 1882 shot him in the back.
From the time.com
Bush was not an ideological radical, just as Obama is not an ideological turncoat.
From the dailyherald.com
The widow of the slain coup leader Major Moises Giroldi called Olechea a turncoat.
From the time.com
For others, Smith was a rat, a self-interested turncoat of the lowest variety.
From the businessweek.com
The government has dismissed Mr Aponte as a discredited turncoat offering no proof.
From the economist.com
There were also reports that several turncoat pirates may have helped in the escape.
From the latimes.com
Other than culinary preference, in most aspects, they are complete turncoat.
From the economist.com
Branded a turncoat by militants, he will go into exile when he steps down.
From the latimes.com
If he claims no interest in being a candidate, but changes his mind, he's a turncoat.
From the usatoday.com
More examples
Deserter: a disloyal person who betrays or deserts his cause or religion or political party or friend etc.
A turncoat is a person who shifts allegiance from one loyalty or ideal to another, betraying or deserting an original cause by switching to the opposing side or party. ...
(The Turncoats) The Turncoats is the second novel in the The Thirteenth series written by G. L. Twynham.
A traitor; one who turns against a previous affiliation or allegiance
One who has changed his party from interested motives.