A mystery proposal to change the way vacancies among Oregon’s U.S. senators are filled surfaced over the weekend and set off a wave of speculation that Sen. Ron Wyden, D-Oregon, could opt out of his 2022 re-election bid or not serve his full six-year term if elected.

The questions about Wyden, 72, and the proposal intensified Tuesday when the proposal was on the agenda of the House Rules Committee in its first meeting after the beginning of the 2022 session.