Moderate Sen. Susan Collins backed Tulsi Gabbard’s bid to become director of national intelligence ahead of a key committee vote Tuesday, in a significant boost for the former Hawaii

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.