"expedient policy" is a correct and usable phrase in written English.
You can use it when describing a strategy or plan of action that is beneficial and efficient. For example: "The company implemented an expedient policy to restructure their operations."
Ford did appear in a campaign commercial for the Reagan-Bush ticket, in which he declared that the country would be "better served by a Reagan presidency rather than a continuation of the weak and politically expedient policies of Jimmy Carter".
Most incumbents are prepared to adopt any expedient to pursue policy objectives and to retain office.
Of course, it's possible that America's next president — Republican or Democrat — will pay lip service to democratization of this patient and careful variety while in fact abandoning the cause and going back to the expedient but foolish policy of promoting our own interests regardless of the consequences to others.
The United States does its allies no service by looking the other way while they pursue expedient but counterproductive policies.
But if it does, it will be yet another example of expedient politics trumping sound policy.
"The Queen is long past being shocked by the expedient dictates of foreign policy and commercial interests," Michael White, a columnist, wrote in The Guardian.
As a statesman Burghley saw that his duty was to give the Queen his best advice and then to carry out whatever policy seemed expedient to her.
What makes the United States stand out, perhaps, is how frequently American officials proclaim their values to the world, setting themselves up for charges of hypocrisy when a policy is expedient rather than idealistic.
The revelation could also galvanize Rubio supporters, serving as evidence that Rubio has taken principled rather than politically or personally expedient stances on immigration policy.
