The phrase "as staunchly" is correct and usable in written English.
It can be used to describe someone’s strong and unwavering support or belief in something, often in a comparative context.
Example: "She defended her position as staunchly as her colleagues opposed it."
Alternatives: "as firmly" or "as resolutely".
Yet as staunchly as Toru holds her, Naoko remains emotionally untethered, her eyes and her heart yearning to a space far beyond.
For Rifaat, who saw himself as staunchly middle class, Egypt had become a lonely place.
Sunday's effort drew in volunteers who, until a few months ago, would have described themselves as staunchly apolitical.
The world should express its solidarity with the victims as staunchly and vocally as it did with France's.
Even those who would otherwise identify as staunchly pro-life have seen Down syndrome as a possible justification for abortion.
None of these labels fit: that party can only be described as staunchly conservative, or nationalist conservative at worst.
Senator Jesse Helms of North Carolina, has been portrayed not only as a staunchly principled conservative, but as a courtly Southern gentleman.
Cohn retained his position as the staunchly undemocratic president and production chief of Columbia until his death.
Such extravagant visions invite a snigger from those who have known Hong Kong as a staunchly philistine city.
As the staunchly right-wing Web site The American Dream argued, Supporters of Texas Governor Rick Perry are not going to like this article at all.
Between late-January and mid-March, America's central bank slashed short-term interest rates by two percentage points, to 2.25%, as it staunchly sought to cushion America's economy from the fallout of the credit crunch.
