Assertion: u.s.'s constitution | /r/CapableOf | authorize the senate
Facets:
value: to elect a president pro tempore
type: PURPOSE
Source sentences:
text: The Constitution authorizes the Senate to elect a president pro tempore (Latin for "president for a time") who presides over the chamber in the vice president's absence, and is, by custom, the senator of the majority party with the longest record of continuous service.