New Jersey Sen. Bob Menendez’s wife has confided in friends that she is convinced she will go to prison because she is short of money for legal representation, The Post has learned. Nadine Arslanian, the Democrat’s second wife, faces up to 45 years in prison if convicted on bribery and corruption charges when she goes on trial in July. Her attorneys withdrew from her case earlier this month after successfully having her trial put off until July because she has “a serious medical condition” — leaving her without a defense team. Now multiple members of her social circle have told...