The poll, which was released Tuesday, showed Tester with a strong approval rating, considering how incumbents across the country are seeing their ratings drop. Tester had a 51 percent approval rating, while 39 percent disapproved. Comparatively, 41 percent approved of the job being done by Sen. Max Baucus (D-Mont.), who is up for re-election in 2014.
Rehberg, who is the at-large Congressman, earned a 44 percent approval and 45 percent disapproval rating.
The survey of 819 registered voters was conducted Thursday to Sunday and had a 3.4-point margin of error.
Sen. Dianne Feinstein, D-Calif., chairman of the Senate Intelligence Committee, speaks with reporters in the Capitol after a speech on the Senate floor that accused the CIA of searching computers set up for Congressional staff for their research of interrogation programs.