The phrase "a difficult and controversial" is correct and usable in written English.
It can be used to describe a topic, issue, or situation that is both challenging and likely to provoke differing opinions or debates.
Example: "The committee is currently discussing a difficult and controversial proposal regarding environmental regulations."
Alternatives: "a challenging and contentious" or "a complex and disputed".
Now, three years later, the wish to keep the parish going has forced it to make a difficult and controversial decision.
"It's a difficult and controversial moment for Brazil," said Claudio Boechat, professor and specialist in sustainability at the Fundação Dom Cabral business school, in a phone interview from Minas Gerais.
The government banned tree-felling across a wide area, including much of the pandas' habitat.Counting wild panda numbers is a difficult and controversial science, relying on estimates based on examination of droppings.
He said that he would rule on a "difficult and controversial" area of the law: the duty of investors like Wilpon and Katz to act on warnings of possible fraud by an investment manager like Madoff.
Mr. Giuliani, who last week summoned the three remaining major-party mayoral candidates to announce his idea for an extended term, hinted at that time that if they rejected it, he would try to run for a third term, possibly on the Conservative line, a difficult and controversial move.
"I came out of a management committee meeting and received a phone call from Cycling News asking: 'Are you supporting Pat McQuaid?' I had to say something after a difficult and controversial meeting [discussing the fallout from Lance Armstrong's systematic cheating].
The ruling, by an independent selection panel, will spare Nicky Morgan, the new Education Secretary, a difficult and potentially controversial decision in her first weeks in the job.
"The problems generated by decisions whether or not to impose DNACPR ['do not attempt CPR'] notices are inherently fraught … Whether it is appropriate to consult will depend on a difficult and sometimes controversial judgment to be made by the clinicians".
Assessing (or ranking) a photo is a very difficult and controversial task, especially when dealing with consumer ones.
However, the separation of these two terms is an open, difficult, and controversial issue [6],[25]-[28].
The deep phylogeny of eukaryotes is an extremely difficult and controversial problem.
