Amy Klobuchar
In late 2016, Klobuchar was known to have passed more legislation than any other senator. In February 2017, she called for an independent, bipartisan commission like the 9/11 Commission to investigate ties between Russia and U.S. President Donald Trump and his administration.  She maintained high approval ratings throughout 2017, with the Star Tribune's Minnesota Poll announcing in April 2017 that her approval rating was 72%. In October 2017, Morning Consult listed Klobuchar in the Top 10 of their list of senators with the highest approval rating.