Feinstein, the chair of the Senate Intelligence Committee, said that the ISIS threat to the U.S. is "potentially very serious."
“This is a vicious, vicious movement, and it has to be confronted," she said.
According to Feinstein, ISIS could pose a direct threat to Americans.
“I believe it is on its way to Baghdad, and I believe they will try to attack our embassy from the West," she said.
The senator said that she agrees with conservative Sen. John McCain (R-AZ) and Sen. Lindsey Graham (R-SC), who co-wrote an op-ed in the New York Times urging the president to act quickly in confronting ISIS.
While she was largely critical of Obama's approach, she said he is right to push for a new Iraqi government that could rally Sunnis to push back against ISIS.
“I think the president is wise in this sense," Feinstein said.
Watch the interview via NBC: