WASHINGTON (AP) — Tulsi Gabbard, President Donald Trump’s pick to be director of national intelligence, faced sharp criticism from Democrats and Republicans alike Thursday during a fiery confirmation hearing focused on her past comments sympathetic to Russia, a meeting with Syria’s now-deposed leader and her past support for government leaker Edward Snowden.

Gabbard started her hearing by telling lawmakers that big changes are needed to address years of failures of America’s intelligence service. She said too often intelligence has been false or politicized, leading to wars, foreign policy failures and the misuse of espionage. And she said those lapses have continued as the U.S. faces renewed threats from Russia and China.

“The bottom line is this must end. President Trump’s reelection is a clear mandate from the American people to break this cycle of failure and the weaponization and politicization of the intelligence community,” Gabbard told the Senate Intelligence Committee.

Gabbard promised to be objective and noted her military service, saying she would bring the same sense of duty and responsibility to the Office of the Director of National Intelligence, which oversees and coordinates the work of 18 intelligence agencies.

The questions raised by senators about Gabbard’s judgment and experience make her one of the more contentious of Trump’s Cabinet nominees. Given thin Republican margins in the Senate, she will need almost all GOP senators to vote yes in order to win confirmation.

A former Democratic congresswoman from Hawaii, Gabbard is a lieutenant colonel in the National Guard who deployed twice to the Middle East and ran for president in 2020. She has no formal intelligence experience, however, and has never run a government agency or department.

It’s Gabbard’s comments, however, that have posed the biggest challenge to her confirmation. She has repeatedly echoed Russian propaganda used to justify the Kremlin’s invasion of Ukraine and in the past opposed a key U.S. surveillance program.

In a back-and-forth Thursday that at times grew heated, lawmakers from both parties raised concerns about her statements supportive of Snowden, a former National Security Agency contractor who fled to Russia after he was charged with revealing classified information about surveillance programs.

Several senators, including Republicans James Lankford of Oklahoma and Susan Collins of Maine, pressed Gabbard on whether she would push to pardon Snowden, or whether she considered him a traitor. On the last question, Gabbard repeatedly declined to answer.