alternatehistory.com

Based off of this article by The Atlantic in October 1980, what would happen if there is no electoral majority in the 1980 election? Basically, Mondale becomes Acting President but is assassinated by John Hinckley for that added FL&G factor. Tip O'Neil serves until the 1982 elections. Anger over the deadlock causes the Republicans to take the House and Senate. Ronald Reagan is chosen over Carter and Anderson in the House, and Bush is chosen over Lucey. With the Reagan administration's response to the recession unpopular, Dale Bumpers wins the Presidency as a moderate.

1981: Vacant/Walter Mondale (Democrat)
1980: Ronald Reagan/George Bush (Republican), Jimmy Carter/Walter Mondale (Democrat), John Anderson/Pat Lucey (Independent)
1981-1983: Vacant/Tip O'Neil (Democrat)
1983-1985: Ronald Reagan/George Bush (Republican)
1985-1993: Dale Bumpers/Scott Matherson (Democrat)
1984: Ronald Reagan/George Bush (Republican), John Anderson/Edward Brooke (National Unity)
1988: George Deukmejian/James Thompson (Republican)
1993-1997: Caroll Campbell/Pete Domenici (Republican)
1992: Scott Matherson/Richard Reily (Democrat)
1997-2005: Kurt Schmoke/Ted Mondale (Democrat)
1996: Caroll Campbell/Pete Domenici (Republican)
2000: Pete Domenici/Orrin Hatch (Republican)
2005-2013: Ted Mondale/Frank Pallone (Democrat)
2004: George Allen/George Pataki (Republican)
2008: Susana Terrell/John Sununu (Republican)
2013-2021: George LeMiex/John Kennedy (Republican)
2012: Frank Pallone/Ned Lamont (Democrat), Matt Gonzalez/Al Sharpton (New Alliance)
2016: Chris Coons/Alexi Giannoulias (Democrat)
2021-Present: Carte Goodwin/Joe Kennedy (Democrat)
2020: John Kennedy/Sam Brownback (Republican)