The phrase "a longstanding view" is correct and usable in written English.
It can be used to refer to an opinion or belief that has been held for a long time, often in discussions or analyses of historical or cultural perspectives.
Example: "The longstanding view among historians is that the event significantly altered the course of history."
Alternatives: "an established perspective" or "a traditional belief".
A befuddled quote has often been used to sum up a longstanding view from the other side of the Atlantic: "The problem with the French is that they have no word for entrepreneur".
The pope's appeal was based on a longstanding view of the Roman Catholic Church that the Israeli conquest of East Jerusalem and its annexation to Israel was an act of occupation.
Corbyn is thought to have had a longstanding view in favour of decriminalising sex work but this appears to be the first time he has confirmed his position in public since becoming Labour leader.
At the Orgenonian (or OregonLive.com), the whole thing is deemed totally bunk for one simple fact: Allen has a "longstanding view that bringing in another professional team that would compete for dollars with his basketball team makes no sense".
The headline in Wednesday's Australian – "ABC's 'budget fairness' victim pays no net tax" – reflects a longstanding view of the conservative side of politics and the media that we should worry about the rise of those paying no "net tax" – where you balance the amount of tax paid with benefits received.
In this context, Scalia's attack on minority students was not a clumsy rhetorical blunder or well-meaning discussion of educational theory, but entirely consistent with his radical reading of the US constitution – a longstanding view that is far removed from the ideas of liberals who cherish the document's egalitarian spirit.
This reflects the longstanding view that a valid argument is truth-preserving.
It was the longstanding view of a segment of the UFA that the Alberta government should enter the banking business directly by obtaining a bank charter from the federal government (which has responsibility for banking under the Canadian constitution).
This finding is consistent with the longstanding view that an area exists about the foveal midline within which ipsilateral and contralateral projections are intermingled and so information in this area projects bilaterally to both hemispheres (for relevant evidence and discussions, see [6] [17], [81]).
At Thursday's debate with Hillary Clinton in Brooklyn, N.Y., Sanders reiterated his longstanding view that he would demand not a hint or a promise but a public commitment that any Supreme Court nominee would vote to overturn a precedent Sanders doesn't like.
