yes.
A naturalized citizen can be a US Senator, although not the US President.
Attorney
He was elected as US Senator in 1952 and took in January of 1953.
He was a US Senator from NY when he was killed. Before that he was the Attorney General for his brother.
Governor and US Senator James Paul Clarke and Attorney Uriah Rose.
9 years.
30 years of age
Yes, for campaigning
The US Attorney files criminal charges in US district court. If you want to report a federal crime, contact the FBI.
Before he was President, Barack Obama was a practicing attorney, community organizer, taught constitutional law at University of Chicago, was an Illinois State Senator and a US Senator from Illinois.
Saint Paul Mayor Norm Coleman who went on to become a US Senator and Minnesota Attorney General Hubert H. Humphrey III (D).
He served three terms representing the 13th District in the Illinois Senate from 1997 to 2004