Republicans released a new attack ad Thursday that calls former Secretary of State Hillary Clinton “maybe the least transparent person in public life,” an accusation stemming from the controversies over her use of private email to conduct State Department business and the foreign donations given to the Clinton Foundation during her tenure. The spot uses video footage of then-secretary Clinton’s remarks about international corruption at Transparency International-USA’s Integrity Award Dinner in March 2012, where she said “the lack of transparency eats away like a cancer at the trust people should have in their government.”

The Republican National Committee’s messaging campaign, called “Hillary Clinton: Secretary of Secrecy,” is intended to point out “the decades-long pattern of Clinton deception and secrecy,” the RNC said.

“Hillary Clinton’s email scandal is just the latest in a pattern of secrecy and deception that spans decades. From hiding billing records at the Rose Law Firm, to creating a secret email server, to granting special status to favored aides and refusing to say why, ‘the Secretary of Secrecy’ has shown that she doesn’t believe the rules apply to her,” the party said in a statement.

Clinton addressed the email controversy publicly for the first time on Tuesday, when she argued at a press conference that she used private email out of “convenience,” an argument that failed to sway many political observers. She also said she would not turn over the email server, which she owned, that handled her account, since the server also contains private messages that are not in the public interest.

During the press conference, Clinton said that looking back it would have been ideal for her to use a government-issued email account for government business. She said she turned over her public emails to the State Department, or about 55,000 pages of messages. Clinton said she was also going “above and beyond” what is required by federal regulation by intending to make the emails public.

You can watch the attack ad below: