|House Minority Leader||Phil GiaQuinta|
|Senate Minority Leader||Timothy Lanane|
|Headquarters||115 W. Washington Street, Suite 1165, Indianapolis, IN|
|Student wing||College Democrats of Indiana|
Indiana Young Democrats
|Political position||Centre-left to Left-wing|
|National affiliation||Democratic Party|
|Seats in the US Senate|
|Seats in the US House|
|Indiana Executive Offices|
|Seats in the Indiana State Senate|
|Seats in the Indiana House of Representatives|
The Indiana Democratic Party has its roots in the work of Jonathan Jennings, Democratic-Republican and first governor of the newly formed state of Indiana in 1816. Jennings pushed hard for statehood, and is attributed as an intellectual father of the Indiana Democratic Party. He pushed for a statewide school system and a stable state bank.
Indiana political parties in the 19th century were extremely divided culturally. Indiana, more than any other Midwestern state, received an influx of southern farmers who didn't mix well with northern manufacturers and businessmen. Patronage was given out regularly as Democratic and Whig (and eventually Republican) politicians fought for control of state government. Whigs predominantly controlled the state legislature, while Democrats predominantly controlled the governorship. Turbulent elections and heated Democratic passion ended up persuading 50 Whig legislators to switch parties by 1852. Even though William Henry Harrison, a Whig and one of the first governors of the Indiana territory, ran for president in 1840, Democrats like Joseph Chapman were very critical of him and his supporters.
The first Indiana Democratic Party meeting was held in 1848, and at the time was called the "Indiana State Central Committee of the Democratic Party". Only seven men were in attendance. Thomas Hendricks, nephew of the third governor of Indiana, became the first post-war Democrat to be elected governor in a Northern state. His popular bipartisan leadership would eventually lead him to be President Grover Cleveland's first vice president from 1885 to 1889.
As the city of Indianapolis grew into a massive urban area, Democrats began to continuously represent the city in the state legislature. Thomas Taggart, the mayor of Indianapolis from 1895-1901, became the first Hoosier to become chairman of the Democratic National Committee. In 1913, Thomas Marshall, Governor of Indiana, became yet another Democratic Hoosier to be a vice president (under Woodrow Wilson). Marshall is perhaps best known for his humorous quote as vice president, said on the Senate floor: "What this country needs is a really good five-cent cigar."
Years later, World War II veteran Frank McKinney became a delegate in the 1948 Democratic Convention, and later became the second Hoosier to be Chairman of the Democratic National Committee in 1951.
In the 1980s, Evan Bayh became a popular figure within the Indiana Democratic Party as well as the state of Indiana. A young governor elected in 1988, Bayh was later elected to the U.S. Senate in 1998. Bayh's two terms as governor, along with his lieutenant governor Frank O'Bannon's own gubernatorial years, resulted in a budget surplus, tax cuts and increased funding for education and health insurance for the poor. Long considered a moderate, Bayh was rumored to be a top pick for Barack Obama's vice presidential nominee in 2008, but the spot ended up going to Delaware Senator Joe Biden.
Following O'Bannon's death in 2003, Lieutenant Governor Joe Kernan succeeded him in office. Kernan lost the 2004 gubernatorial election to Republican Mitch Daniels, ending sixteen years of Democratic control of the Governor's Mansion. Democrats lost attempts to regain the office in 2008, 2012 (when former Speaker of the State House of Representatives John Gregg narrowly lost to U.S. Representative and future Vice President Mike Pence), and 2016 (when Gregg was again defeated, despite leading in the polls heading into election day). 
Bayh, who had represented Indiana in the U.S. Senate since 1999, was reelected overwhelmingly in 2004 even as Republican George W. Bush carried the state in the presidential race. Bayh declined run again in 2010, resulting in Republicans gaining the seat, and was defeated in his bid for a non-consecutive third term in 2016. Republican control of both U.S. Senate seats from Indiana was ended when Joe Donnelly won the 2012 election, defeating controversial Republican candidate Richard Mourdock. Donnelly sought reelection in 2018, campaigning on his willingness to compromise with President Donald Trump, but was defeated by Mike Braun.
Democratic candidate J. D. Ford became the first openly gay Hoosier elected to the Indiana Senate following his 2018 victory over Mike Delph, to whom he had narrowly lost a State Senate bid four years earlier.
In February 2011, 37 out of 40 House Democrats refused to show up to a legislative session in protest of a Republican "right-to-work" bill, which would allow workers represented by labor unions to refuse to pay "agency fees" to pay for the benefits and protections provided by the union. With the Republicans in the majority, Democrats feared that what they consider to be a radical bill would be easily passed, and many of them relocated across the border in Urbana, Illinois. The move largely took a cue from Indiana's counterparts in Wisconsin, where Democratic lawmakers there hid out in Illinois in protest of a controversial public-sector union bill in the same month.
The Indiana Democratic caucus released a statement on the matter, saying that "By staying here, we will be giving the people of Indiana a chance to find out more about this radical agenda and speak out against it." Republican Governor Mitch Daniels, who had previously urged Republican lawmakers not to pursue a right-to-work bill during that legislative session, stated his hope that Democrats would return to do their jobs. Daniels supported the bill, but not the political timing of it, as it would distract from other parts of his legislative agenda he wanted to focus on.
In early March 2011, Democrats faced a choice of either returning to the state, or paying a daily fine of $250. The Indiana Constitution allows such fines as a way of compelling missing lawmakers to return. Such a tactic was employed as an alternative to sending state troopers after runaway legislators, which Governor Daniels declined to do. Lawmakers returned in six weeks, after they had been reassured that the right-to-work bill would not be on the legislative docket for that session. The bill was passed and signed into law the following year.
The Democratic Party of Indiana is administered by several executive positions at the head of the state party committee. John Zody is the Committee Chair, Cordelia Lewis-Burks the Vice Chair, Vera Mileusnic the Secretary and Sherrianne Standley the treasurer. There are 26 official rules for the Indiana Democratic Party, as of the current party rule charter, written in 2011.
Under Rule 1, party structure is defined as consisting of multiple layers of committees, including (in order from less to more localized) a state central committee, congressional district committees, county committees and precinct committees. Towns, cities, townships and wards may create their own committees as needed.
The charter ensures gender equality, open access to party meetings by party members, and lays out eligibility requirements for membership in the state Democratic Party. The state central committee has ultimate authority over all of the rules as well as local committees. Three party members are elected as National Committeepersons for four-year terms to serve on the Democratic National Committee, along with the state chair and vice chair. The state chair calls for a state party convention biennially, where rules of the party are drafted and amended. Delegates are selected through a process to attend the convention.
Both of Indiana's U.S. Senate seats have been held by Republicans since 2018. Joe Donnelly was the last Democrat to represent Indiana in the U.S. Senate. First elected in 2012, Donnelly subsequently lost his bid for a second term in 2018 to Mike Braun who has held the seat since.
Out of the 9 seats Indiana is apportioned in the U.S. House of Representatives, 2 are held by Democrats:
Indiana has not elected any Democratic candidates to statewide office since 2012, when Glenda Ritz was elected as Superintendent of Public Instruction. In 2016, Ritz was defeated in her bid for a second term by Republican challenger Jennifer McCormick.