The phrase "a challenging appointment" is correct and usable in written English.
You can use it to describe a scheduled meeting or engagement that is expected to be difficult or demanding.
Example: "The CEO has scheduled a challenging appointment with the board to discuss the company's future direction."
Alternatives: "a difficult meeting" or "a tough engagement."
When Carter appointed Representative Abner Mikva to the D.C. Circuit, a lawsuit challenging the appointment based on Ineligibility Clause objections again failed for lack of standing.
A similar lawsuit is moving through the courts challenging his appointment.
Republicans are challenging the appointment.
Lawyers for Mr. Paterson and Senate Republicans, who are challenging the appointment on the grounds that the State Constitution does not explicitly allow the governor to fill a lieutenant governor vacancy, met in State Supreme Court in Mineola, on Long Island, Friday.
And in 2004, after President George W. Bush, during a weeklong break in the midst of a Senate session, made a recess appointment of William H. Pryor Jr. to be an appeals court judge, Senator Edward M. Kennedy, Democrat of Massachusetts, filed briefs in several court cases challenging the appointment.
He said he had seen a copy of a judicial review challenging Woolf's appointment.
Mrs. Carnahan was appointed to her husband's seat, and Republicans pointed to Mr. Ashcroft's decision not to challenge her appointment as a sign of his integrity.
In a March letter to the Michigan Citizen, Johnson chided Conyers for taking so long to respond to Public Act 4 and for failing to challenge the appointment of an emergency financial manager for the Detroit Public Schools in 2009 under former Democratic Gov. Jennifer Granholm.
In his opening address Gooda immediately rejected reports that Elferink would challenge his appointment because of an allegedly biased tweet sent out after the Four Corners broadcast, which read: "The federal government has to intervene and sack the NT government".
