WASHINGTON - Canadian-born Sen. Ted Cruz, R-Texas, continued to come under fire Sunday over whether he is a “natural born citizen†eligible to be U.S. president. Cruz, a lawyer, has said that his citizenship is “settled law†and on CNN’s State of the Union on Sunday said it is “clear and straightforward†that he became a U.S. citizen at birth in Calgary because his mother was a U.S. citizen. His presidential primary campaign even released his mother’s U.S. birth certificate over the weekend - after denying she had become a Canadian citizen, although her name appears on a 1974 Canadian...