The incumbent, in politics, is the current holder of a political office. For example, in the 2004 Russian presidential election, Vladimir Putin was the incumbent, because he was the current president.
In many jurisdictions and situations, incumbents have structural advantages over challengers during elections. The timing of elections may be determined by the incumbent instead of on a set schedule. For most political offices, the incumbent often has greater name recognition due to their previous work in the office. Incumbents also have easier access to campaign finance. Incumbents also have access to government resources (such as the franking privilege) that can often be indirectly used to boost a campaign. An election (especially for a legislature) in which no incumbent is running is often called an open seat; because of the lack of incumbency advantage, these are often amongst the most hotly-contested races in any election.
Incumbency is an especially powerful force within political parties. In the United States, incumbents traditionally win their party's nomination to run for office. Unseating an incumbent president, senator or other figure during a primary election is very difficult. In particular, barring major scandal or controversy, about 90% of congressional incumbents win re-election to their seats. However, shifts in congressional districts due to reapportionment or other longer-term factors may make it more or less likely for an incumbent to win re-election over time. For example, a Democratic incumbent in historically conservativeTexas would have a less likely chance of winning than a Democratic incumbent in liberal New York City, because Texas has shifted away from the Democratic party in terms of voting.
In countries such as Canada, where nomination systems are also used, it is also difficult to remove an incumbent within the party.
Incumbents also have easier access to campaign finance, as well as government resources (such as the franking privilege) that can be indirectly used to boost a campaign.
For example, a Democratic incumbent in historically conservative Texas would have a less likely chance of winning than a Democratic incumbent in liberal New York City, because Texas has shifted away from the Democratic party in terms of voting (see also Congressional stagnation in the United States).
Elections featuring an incumbent, on the other hand, are as Guy Molyneux puts it, "fundamentally a referendum on the incumbent." Voters will first grapple with the record of the incumbent.
In this research, incumbents were said to win reelection so frequently because congressional voters were inordinately swayed by name recognition when casting their congressional votes.
Incumbents already have gotten their name before the voters; things like casework and franking allow them to do so while in office.
Incumbents win reelection so often because congressionalelections are usually poorly followed by media and by the voters.