The phrase "staunch argument" is correct and usable in written English.
You can use it when you want to emphasize the strength or firmness of a person's argument or position. For example, "He presented a staunch argument in favor of raising taxes."
It's the identical argument Mr Blair and his cabal of staunch loyalists have been making for six years.
In an article published in the Guardian, the two, both staunch defenders of the nuclear deterrent, dismissed as "spurious" arguments they said had been raised by some involved in the review, apparently referring to the new shadow defence secretary, Emily Thornberry.
By the end of oral argument, however, Sotomayor would be Goldstein's staunchest ally.
They appear deeply invested in rehashing the same, seemingly eternal arguments, in continuing what even to a staunch pro-choicer like myself seems like a tedious fight.
At the height of an argument in which he is embroiled as the staunch defender of the importance of high-fidelity sound, he's taken it upon himself to release arguably the lowest-fidelity album ever made by a major artist.
Should the anti-NATO arguments carry, we will have deprived ourselves of staunch allies.
It was an argument that seemed crafted to appeal to Judge Susan P. Read, a staunch conservative but a former top legal adviser to Governor Pataki, who was not shy about exerting executive authority.
A cynical (though not necessarily incorrect) look at Amazon's argument points to the PR potential of appearing to be both a staunch defender of the First Amendment and user privacy.
That argument didn't cut any ice with one Republican who has been a staunch supporter of basic research.
Now we have Mitt Romney, calling himself a 'severe conservative,'" Schumer said, invoking an argument Romney made in the primary campaign when he was competing against stauncher conservatives.
