Irish prime minister concedes defeat in vote over constitutional amendments about family and women
Irish prime minister concedes defeat in vote over constitutional amendments about family and women

Irish prime minister concedes defeat in vote over constitutional amendments about family and women

Ireland doesn't have a prime minister. Leo Varadkar is the Taoiseach. Sure it'd be less clear if the AP used the correct term but I don't think that's any reason to not use the actual term for his office.
It's a gray area because Ireland is an English speaking country but Taoiseach is not an English term.
It's normal practice otherwise for the press to translate non-English titles into their English equivalents, hence why we have English news articles about General Secretary Xi Jinping instead of Xi Jinping Zong Shuji.
It's less of a grey area because Ireland is a predominantly English-speaking country. The official name for his office in both English and Irish is Taoiseach. This is in contrast to the President of Ireland, whose official title in English is 'President'.
I'm British and we never refer to Varadkar as the prime minister. Any news coverage here refers to him, correctly, as the Taoiseach.
EDIT: And this is coming from the country who, regrettably, are the reason why Ireland now has to be so careful to maintain their ancient language after centuries of us trying to eradicate their native culture.
Taoiseach is irish for chieftain but also the office is called that of the taoiseach in our constitution, so it would work as an English word in a sentence.