Very significant
-
In certain close elections, third parties can act as spoilers and affect the final outcome
-
2000: Bush/Gore race came down to Florida, Green candidate Ralph Nader got more votes than Bush’s final margin
-
If Nader had not stood, most of his votes would have gone to Gore, who would have become president
-
Congressional elections can be directly influenced by the presence of independent/third-party candidates
-
2018: Maine 2nd District, Republican winner in first round failed to win when eliminated independent second preference votes were redistributed
-
Third parties/independents may have policies that are attractive to voters, which are then taken by main parties
-
e.g. Ross Perot’s (Reform, 1992) pledge for a balanced budget
-
Green New Deal in 2018, 2020 taken by progressive Democrats
Not so significant
-
In most presidential elections third-party and independent candidates fail to make any impact
-
Maine is the only state currently using annything other than FPTP, votes for other parties are wasted votes
-
Third parties and independets lack high-profile media presence, rarely able to participate in televised debates
-
Often labelled as extremist and/or irrelevant
Case study: 2024 presidential election
-
Third-parties and independents got under 2% of the vote
-
Failed to act as spoilers in any swing states
-
Both nominally senators, Angus King (I-ME) and Bernie Sanders (I-VT) reelected but no newcomers
-
Dan Osborn came within 7% (436k vs 499k) of unseating incumbent R senator in Nebraska, there was no D candidate standing
Summary
-
Main significance is to have incremental influence on policies of the main two parties
-
Two main parties are R and D, generally more conservative than their UK equivalent
-
Both parties changed considerably, have become more polarised and homogeneous
-
Both parties remain internal coalitions or “big tent”, containing range of factions within