His mother was a U.S. citizen when he was born in Canada he is eligible he didn’t have duel citizenship.
That is a lie and a fraud. Sen. Ted Cruz was born in Canada with immdiate Canadian citizenship, his father’s Cuban citizenship by jus sanguinnis under the Cuban constitution, and the right to request statutory U.S. citizenship from the U.S. State Department. These are all facts of birth which negate any possibility of being a natural born citizen. A natural born citizen is born with U.S. citizenship and no foreign citizenship at birth or at any point in time after birth.
Is that when you have to fight another person to the death to claim citizenship?