The "real" name of U.S. Rep. Ilhan Omar of Minnesota is Ilhan Omar (in full Ilhan Abdullahi Omar). She was born in Somalia to Nur Omar Mohamed and Fadhuma Abukar Haji Hussein and arrived in the U.S. as a refugee when she was 9 years old.
The "real" name of U.S. Sen. Kirsten Gillibrand of New York is Kirsten Gillibrand. Her birth name was Kirsten Elizabeth Rutnik (not "Rutnick"), and "Tina" was a childhood nickname (supposedly adopted because her brother was unable to pronounce Kirsten), while Gillibrand is the surname of the man (Jonathan Gillibrand) whom she married in 2001.
The "real" name of former U.S. Rep. Beto O'Rourke of Texas is Robert Francis O'Rourke. O'Rourke has been known since infancy as "Beto," a common nickname for the Spanish version of his name (Roberto), just as "Bob" is a common nickname for the English version of that name.
The "real" name of U.S. Sen. Bernie Sanders of Vermont is Bernard Sanders, with "Bernie" being the familiar form of his first name. His parents were Elias Ben Yehuda Sanders and Dorothy Glassberg, and the false notion that his "real" surname is actually Gutman apparently stems from a ship's passenger list recording the arrival of his father in New York as a Polish immigrant in 1921 under the name Eliasz Gitman (born to a woman whose married name was Gutman).
