Caocusing or Caucusing: How To spell?

The word Caocusing is misspelled against Caucusing, which is present continuous of "Caucus"

Word contains consecutive vowels 'AU' in between alphabets c & cusing is misspelled as 'AO'
Wrong Spelling:  c-ao-cusing 
Correct Spelling:  c-au-cusing 
Check more misspelled words of Caucusing to spell it correct.

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