Florida's 2018 congressional elections shifted the state delegation toward a narrower partisan divide

Florida's 2018 congressional elections shifted the state delegation toward a narrower partisan divide
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In short: In 2018, Florida's congressional landscape underwent a notable transformation. While the state had long maintained a 16–11 Republican majority in its House delegation, the November elections narrowed that gap to a slim 14–13 margin. This shift represented the highest number of seats held by Democrats in the state since 1982.

The 2018 elections for Florida’s 27 U.S. House seats took place on November 6, following party primaries held on August 28. These contests occurred alongside a gubernatorial race and various other state and local elections. The resulting shift in the congressional delegation was significant, leaving the state just one seat short of a full Democratic flip. This outcome was particularly notable given the diverse political geography of the state, ranging from the conservative-leaning Panhandle to the more competitive central regions.

The electoral process in Florida includes specific administrative quirks that impact how results are reported. Notably, the state does not conduct elections for seats where no opposition files. In 2018, this rule applied to four districts held by Democratic incumbents, including the 10th district represented by Val Demings. Because no other candidates entered the race, the primary was opened to all voters, and the incumbent was automatically declared the winner by state election officials without a general election vote. Consequently, these uncontested races are excluded from official vote totals, which effectively undercounts the total support for Democratic candidates across the state.

The political character of these districts is often measured by the Partisan Voting Index, or PVI, which gauges how a district leans relative to the national average. For instance, the 1st district in the western Panhandle maintained a strong Republican lean of R+22, while the 7th district around Orlando was considered a toss-up with a PVI of Even. Other areas, such as the 6th district along the Surf Coast, saw significant attention from national party organizations like the Democratic Congressional Campaign Committee, which targeted the seat after the incumbent, Ron DeSantis, vacated it to pursue the governorship.

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