senatorial       
adjective mainly US uk/ˌsen.əˈtɔː.ri.əl/ us/ˌsen.əˈtɔːr.i.əl/
 参议院的;参议员的
relating to a senate (= one of the two groups of politicians who make laws in some countries) or to a senator (= a member of a senate)
  a senatorial candidate/committee 参议员候选人/委员会 
 After losing a vicious senatorial campaign, he became a publishing executive in New York City. 在一场充斥着恶意攻讦的参议员竞选失败后,他成为了纽约市的一名出版主管。 
 His record looked too senatorial at a time when the country wanted a commander in chief. 在该国需要总司令的时候,他看上去过多地涉及了参议院方面的事务。 
 See: senator
 - More examples
 - The party can't find a decent senatorial candidate.
 - A unified party is an absolute must if we are to win November's senatorial race.
 - They contributed $10,000 each to the Democratic senatorial and congressional committees.
 - He phoned each of his senatorial clients every day.