MAJORITY

• 229Mark Udall

  [D] CO, United States
• 944John "Jack" F. Reed

  [D] RI, United States
• 298Claire McCaskill

  [D] MO, United States
• 15Joseph "Joe" Donnelly

  [D] IN, United States

MINORITY

• 1,412Jefferson "Jeff" Sessions

  [R] AL, United States
• 21Debra "Deb" S. Fischer

  [R] NE, United States
• 384David Vitter

  [R] LA, United States
• 148Michael "Mike" S. Lee

  [R] UT, United States

OTHER

• 23Angus King

  [I] ME, United States