"Ambassador-at-Large of the United States for International Religious Freedom" sounds like one of the most ineffective and useless posts at the State Department. Brownback clearly wanted out.
Sounds made-up
Maybe it would involve helping Uganda kill the gays.
It's also a convenient way to get rid of a troublesome problem for the Republicans. A Governor in a conservative state who went all-out on Reaganomics and plunged his state into a budget crisis which means tanking approval ratings and maybe even in an unlikely circumstance handing the Governorship to the Democrats?
It's a quick, easy way to make him impotent.