This is a bad poll for Trump. Arizona, which is winner-take-all, is a must-win for Trump. Voters who are undecided are usually undecided about which not-Trump candidate they are going to vote for.
This poll has a very small sample size for such a big and important state. I’d really like to see Trump polling in the 40s to ensure he wins enough congressional districts to clinch the nomination. Trump only at 38 is not a great result for Trump.
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This list of delegates looks pretty good. It accounts for all delegates and even shows you how many unpledged delegates there are. Those unpledged delegates could be of key significance if Trump just misses the 1,237 number. How many of those unpledged delegates will vote for Trump?
There are going to be additional unpledged delegates added from American Samoa, North Dakota, and Pennsylvania.
Trump was very strong in the Northern Mariana Islands. Could that mean that the delegates from Guam and American Samoa will be Trump supporters? (It would be pretty weird if the delegations from Guam and American Samoa tip the balance of who becomes the nominee.)