Republicans and Democrats on the Senate Intelligence Committee grilled Gabbard on her foreign policy positions and her views about Edward Snowden.

Collins, a pivotal swing vote on the Senate Intelligence Committee, is expected to play a key role in advancing Gabbard’s nomination as the committee meets on Tuesday.

Tulsi Gabbard has faced scrutiny for her support of Edward Snowden, a former government contractor who leaked information about U.S. intelligence programs.