I heard the following sentence on TV at a speech by a native speaker.
"...There has been no American that has needed a ventilator that has not received one."
As you can see, there are two relative clauses(two "that"s) in this sentence, which refer to the same name(an american). But there is no "and" between these two clauses. So the second "that" seems as if it refers to "ventilator", whereas it refers to the word "american".
This is against what we are taught at school, because at school relative clause should be placed right after the thing it refers to.
1-Is this sentence grammatically correct like this; being not connected without "and"?
2-What would be the correct version of this sentence?