This is the headline:  Race and redistricting: Unholy alliance starting to fray and the first paragraph of a recent article in the Washington Post: 

Since the 1990s, black Democrats and Republicans have been in an “unholy alliance” when it comes to redistricting. While it still holds in some cases, that alliance may be ending as ma­nipu­la­tion of majority-minority districts threatens Democrats chances of retaking the House majority

To be fair, while the headline is probably the work of some idiot headline editor, the Post is actually quoting a white left-wing redistricting partisan Michael McDonald. 

In the 1990s, all of the [electoral] cases were favoring this unholy alliance,” said redistricting expert Michael McDonald. “ Those conditions have dramatically shifted. More often we’re finding situations where it’s not in the black community’s interest to side with Republicans.”

This characterization is quite offensive yet apparently reflective of what many white liberals think of any alliance or compromise between Blacks and Republicans who may engage in the supposed horse-trading of negotiating political lines (yes, a compromise) that everyone claims to be utopia and that may actually increase black representation overall.  This begs the question, who or what is actually engaged in an unholy alliance?