Nadine Menendez surrendered to federal authorities Friday afternoon and is in the custody of the Bureau of Prisons at the Federal Correctional Institution Tallahassee.
Federal prosecutors say the senator tried to use his power to advance Egyptian military interests, interfere in criminal prosecutions, and secure investment from Qatari officials, among other things.
Menendez said in March he would not run for re-election as a Democrat amid he and his wife, Nadine, being put on trial for corruption.
The elevator breakdown came as jurors were shuttled between floors to an assembly room because carpeting in their usual assembly room was found to be soaked on Monday after somebody left sink faucets on over the weekend.
Menendez, 70, has been charged with playing a pivotal role in a convoluted international bribery scheme involving his wife, Nadine; the governments of Egypt and Qatar; and several Garden State businessmen.
U.S. Sen. Bob Menendez announced his wife is battling breast cancer and she will require a mastectomy as the two face separate corruption trials.