Sen. Josh Hawley (R-MO) on Tuesday called on Energy Secretary Jennifer Granholm to resign after the two squared off in a contentious Senate hearing about Granholm’s previous failure to disclose her ownership of stocks in six U.S. companies.

The tense back-and-forth occurred during Granholm’s appearance on Tuesday before the Senate Energy and Natural Resources Committee as it convened to review the Energy Department’s 2025 budget request.