Assertion: president | /r/HasProperty | pro tempore
Facets:
Source sentences:
text: Arthur Vandenberg (from 1947 to 1949) was the last president pro tempore not to be the senior member of the majority party, aside from the single day in December 1980 accorded Milton Young, who was the retiring senior member of the Republican Party, which would hold the majority in the incoming 97th Congress.