WSJ:
Methodology: Delegate numbers for each state are after the application of penalties and include unpledged delegates. In some states where actual delegates are assigned and bound to support candidates by multi-step procedures, the AP uses results from local caucuses to calculate the number of national delegates each candidate eventually will win and assigns those delegates at the end of the caucus. Additionally, the AP interviews unpledged delegates to determine their preferences and includes them in the total; these national party leaders have the freedom to back any candidate of their choosing and may make the decision about which candidate to support at any time during the primary process, and they may or may not tell reporters of their decisions. (See correction.)
Note: This tally excludes nine delegates each for American Samoa, Guam, Northern Marianas and the Virgin Islands, and Puerto Rico, with 23.