Members of leadership and newly elected legislators will be sworn in during ceremonies on the first day of session, which is slated to begin noon on Jan. 10.
Regarding the mailers, however, Stein said the advertisements sent out bearing the name 'Women Lead Wyoming' did not meet the requirements set by state law.
Sanders won the 2016 Wyoming Democratic Caucuses by a margin of more than 11 percent in the popular vote, but still received just seven delegates from the state -- the same number of delegates given to Democratic Presidential Nominee Hillary Clinton.
The White House says it will continue to press Congress for "fast track" authority to speed approval of trade deals even as election-year politics makes the task harder.