Retiring Senator Pat Toomey from Pennsylvania has a message for his successor John Fetterman: don't blow up the filibuster. Senator Toomey has been a stalwart defender of the filibuster during his time in office. James Wallner from the R Street Institute and former staffer for Senator Toomey breaks down Toomey's legacy and why abolishing the filibuster would lead to increased polarization and volatile policy changes.