The United States government's intelligence agencies concluded the Russian government interfered in the 2016 United States elections. A joint US intelligence review stated with high confidence that, "Russian President Vladimir Putin ordered an influence campaign in 2016 aimed at the US presidential election. In May 2019, Republican Florida GovernorRon DeSantis announced Russians hacked voting databases in two Florida counties prior to the 2016 presidential election and no election results were compromised.
Congressional elections
Senate elections
All seats in Senate Class 3 were up for election. Democrats won a net gain of two seats, but Republicans retained a majority with 52 seats in the 100-member chamber.
All 435 voting seats in the United States House of Representatives were up for election. Additionally, elections were held to select the delegates for the District of Columbia and the U.S. territories, including the Resident Commissioner of Puerto Rico. Democrats won a net gain of six seats, but Republicans held a 241-to-194 majority following the elections. Nationwide, Republicans won the popular vote for the House of Representatives by a margin of 1.1 percent.
State elections
Gubernatorial elections
Regular elections were held for the governorships of 11 U.S. states and two U.S. territories. Additionally, a special election was held in Oregon after the resignation of John Kitzhaber as Governor. Republicans won a net gain of two seats.
Legislative elections
In 2016, 44 states held state legislative elections; 86 of the 99 chambers were up for election. Only six states did not hold state legislative elections: Louisiana, Mississippi, New Jersey, Virginia, Alabama, and Maryland.
Mayoral elections were held in many cities, including:
Bakersfield, California: Incumbent Harvey Hall did not seek re-election. Karen Goh was elected to succeed Hall. The office is not partisan.
Baltimore, Maryland: Incumbent Democrat Stephanie Rawlings-Blake did not seek re-election. Democrat Catherine E. Pugh was elected as Rawlings-Blake's replacement.
Gilbert, Arizona: Incumbent John Lewis resigned prior to the election. Interim Mayor Jenn Daniels was elected to succeed Lewis. The office is not partisan.
Honolulu, Hawaii: Incumbent Democrat Kirk Caldwell won re-election to a second term.
Milwaukee, Wisconsin: Incumbent Tom Barrett was re-elected to a fourth term. The office is not partisan.
Portland, Oregon: Incumbent Charlie Hales did not seek re-election. Ted Wheeler was elected to succeed Hales. The office is not partisan.
Richmond, Virginia: Incumbent Dwight C. Jones was term-limited and cannot seek re-election. Levar Stoney was elected as the new Richmond, VA, mayor. The office is not partisan.
Sacramento, California: Incumbent Democrat Kevin Johnson did not seek re-election. Democrat Darrell Steinberg was elected as Johnson's replacement.
San Diego, California: Incumbent Kevin Faulconer won a second term as mayor. The office is not partisan.
Tulsa, Oklahoma: Incumbent Republican Dewey F. Bartlett Jr. was defeated by city councilor and fellow Republican G. T. Bynum.
Table of state, territorial, and federal results
This table shows the partisan results of Congressional, gubernatorial, presidential, and state legislative races held in each state and territory in 2016. Note that not all states and territories hold gubernatorial, state legislative, and United States Senate elections in 2016; additionally, the territories do not have electoral votes in American presidential elections, and neither Washington, D.C. nor the territories elect members of the United States Senate. Washington, D.C. and the five inhabited territories each elect one non-voting member of the United States House of Representatives. Nebraska's unicamerallegislature and the governorship and legislature of American Samoa are officially non-partisan. In the table, offices/legislatures that are not up for election in 2016 are already filled in for the "after 2016 elections" section, although vacancies or party switching could potentially lead to a flip in partisan control.
