Wow! A whole 283 respondents! Even a difference of ten points isnt statistically significant.Dont you think the word margin belongs in scare quotes in an article about that sort of poll?
You might almost as well ask me what the results will be. I lived near Baltimore for five years, back in the sixties . . .
Nearly 300 in a poll of a state the size of Maryland is actually a fair sample, no matter how much you want to believe Cruz has any credibility there.