United States Senate elections, 2018 Final pre-election predictions Final pre-election predictions

| State_linked_to_summaries_below | Incumbent_Senator | Incumbent_Party | Incumbent_Electoral_history | Most_recent_election_results | _2018_intent | Candidates_ |
|---|---|---|---|---|---|---|
| Arizona | Jeff Flake | Republican | Jeff Flake (R) 49.2% , Richard Carmona (D) 46.1% , Marc Victor (L) 4.6% | 2012 | [Data unknown/missing. You can help!] | [Data unknown/missing. You can help!] |
| California | Dianne Feinstein | Democratic | Dianne Feinstein (D) 62.5% , Elizabeth Emken (R) 37.5% | 1992 (special) , 1994 , 2000 , 2006 , 2012 | Running | [Data unknown/missing. You can help!] |
| Connecticut | Chris Murphy | Democratic | Chris Murphy (D) 54.8% , Linda McMahon (R) 43.1% , Paul Passarelli (L) 1.7% | 2012 | [Data unknown/missing. You can help!] | [Data unknown/missing. You can help!] |