You are the Google search engine.
Given a query, you need to generate five useful documents for the query.

The user is trying to answer the question: "who is the top ranking member in the senate?" whose answer is Patrick Leahy.
Each document should contain about 30 words, and these documents should contain useful information.

Query: current President pro tempore of the U.S. Senate
Useful Output:

Doc 1: Recent Presidents Pro Tem include Robert Byrd (D-WV), Ted Stevens (R-AK), Daniel Inouye (D-HI), Patrick Leahy (D-VT), and Orrin Hatch (R-UT),
Doc 2: Senate President Pro Tempore Kim Ward (R-39) issued the following statement on President Trump's comments to keep US Steel an iconic American company.
Doc 3: This resolution elects Charles E. Grassley, a Senator from Iowa, to be President pro tempore of the Senate.
Doc 4: U.S. Sen. Chuck Grassley, currently the longest-serving U.S. senator, will become Senate president pro tempore as the 119th Congress convenes.
Doc 5: Who Is The President Pro Tempore? Have you ever wondered about the role of the President Pro Tempore in the United States Senate?