John McCain had the most votes in the 2008 Puerto Rico Republican presidential caucuses, which were held in February that year at the Commonwealth convention.
John McCain 188 Mike Huckabee 10 Ron Paul 9 Total 208 The 2008 Puerto Rico Republican presidential caucuses were held on February 24, 2008. John McCain won all 20 pledged (and the support of three unpledged delegates) at the Commonwealth's convention. 
