Rep. Sheila Jackson Lee, a Texas Democrat, suggested during an FBI oversight hearing on Wednesday that Russia is responsible for the vote-reporting issues from Tuesday’s Iowa caucuses.

“I hope that the Iowa Democrats will ask for an FBI investigation on the app,” the Texas Democrat told FBI Director Christopher Wray. “I believe that Russia has been engaged in and interfering with a number of our elections dealing with the 2016 election.”

Wray responded by reassuring Jackson Lee that the FBI shares her concern about Russian interference.

“Certainly, we are also concerned about potential Russian interference with our elections,” Wray said. “That’s why I created the foreign influence task force, which is acutely focused on that topic among other nation-states that are attempting to influence our elections.”

Democrats have faced criticism for not properly testing the voting system in Iowa, which includes an app the Iowa Democratic Party spent $60,000 to implement.

“How can anyone trust you now?” a reporter yelled at the chairman of the state’s Democratic Party after reporting issues had still not been cleared up the day after voters caucused. An official winner has still not been announced as of Thursday evening.

Democratic National Committee Chairman Tom Perez expressed his frustration on Thursday by calling for a recanvassing.

“Enough is enough. In light of the problems that have emerged in the implementation of the delegate selection plan and in order to assure public confidence in the results, I am calling on the Iowa Democratic Party to immediately begin a recanvass.”