It’s still three years away from the 2020 US election but many Democrats are thinking ahead to who will be at the top of the ticket to face President Trump. Here are some of the most likely candidates for the nomination:

  1. Former Vice President Joe Biden

It seems Biden has a lot of regrets about not running for president in 2016. He’s claimed he thinks he could have won the election and that he would have been the most-qualified candidate. Biden would likely be one of the best candidates for winning back the Rust Belt and white working class voters. Biden was a popular vice president but it’s uncertain whether Biden could win the Democratic nomination since he’s had trouble in the past.

Biden was born in Scranton, Pennsylvania. He later earned his BA from the University of Delaware and his law degree in 1968 from Syracuse University College of Law. He later served seven terms as a US Senator (D-DE) and two terms as US Vice President. If Biden won the Democratic nomination for president in 2020 he would be 77 years old by the 2020 general election.

  1. Rep. John Deleney

Deleney has been representing Maryland’s 6th House district since 2013 and has already announced his candidacy for US President in 2020. The district is the second biggest in Maryland and includes most of the western region of MD while most of the constituency is in the other Washington DC suburbs.

Deleney grew up in New Jersey and is the son of an electrician. He’s graduated from Columbia University and Georgetown University Law Center. He’s co-founded two companies that are both traded publically on the NY Stock Exchange. They include Health Care Financial Partners, which loans to small health care service providers. Deleney also co-founded Capital Source, which is a lending company that’s provided capital to thousands of small/mid-size companies.

In 2012 Deleney won the 6th District by defeating Republican Roscoe Bartlett after redistricting. He ended up winning 54% of the vote during the primary then defeated Bartlett by 59% to 38%. Deleney barely won re-election in 2014 by about 2,200 votes and was elected again in 2106 with 56% of the vote.

  1. Sen Kamala D. Harris

Harris was sworn into office as a US Senator representing California earlier this year. There’s been some tension between Harris and progressives but she recently supported the single-payer health care bill of Sen. Bernie Sanders, which seemed to be a step at improving the situation.

Harris is both a politician/lawyer and has served as California’s Attorney General. She was born in 1964 in California. Harris’s father immigrated to the US from Jamaica and was a Standard University economics professor. Meanwhile, her mother emigrated from India and was a breast cancer researcher. Harris graduated from Howard University as well as UC Hastings.

The US Senator was endorsed by US House Speaker Nancy Pelosi and won the Democratic primary. During the general election campaign she also won the enforcement of various organizations including SF Firefighters Local 798, United Educators of San Francisco, and a United Farm Workers co-founder. She defeated Republican Steve Cooley who was the District Attorney of Los Angeles County. Harris became the state’s first female, African-American, and Indian-American attorney general.

Harris was the first Democratic candidate to declare she intended to run for the US Senate seat of Barbara Boxer after she announced she would retire at the end of her fourth term in 2016.Harris was the front-runner since the launch of her campaign in early 2015. A year later the California Democratic Party voted to endorse Harris after receiving nearly 80% of the vote.

Harris won the primary and faced Congresswoman Loretta Sanchez (D-CA) in the general election. It was the first time a Republican didn’t appear on the general election ballot since the state started elector senators in 1914. Harris won the 2016 election with 62% of the vote.

  1. Sen. Bernie Sanders

Sanders seem to be indicating he’ll run again in 2020 even after Hillary Clinton won the Democratic nomination in 2016. However, given the situation many Democrats believe he deserves a second chance. One issue Sanders might have to deal with is a land deal his wife was involved in. It seems to be a major issue so however it turns out could end up affecting whether the Vermont senator runs again in 2020. Another X-factor is Sanders would be 79 years old by the 2020 general election.

Sanders were born in NYC, New York. He graduated from the University of Chicago after earning a BA degree in political science. He’s one of two independent US Senators although was registered as a Democrat from 2015-2016 during his presidential run. He was also a member of the Liberty Union party from 1971-1977. Sanders have been serving as a US Senator since 2007 and were re-elected once.

  1. Sen. Elizabeth Warren

There’s a big question mark about whether the Massachusetts senator will run in 2020 since it seems Sanders will likely try to win the Democratic nomination again. However, Warren as a big fan base so there’s a chance they could try to talk her into running for president as they did for US Senate.

Warren has been a member of the Democratic Party since 1996 and is the senior US Senator from Massachusetts. She’s taught at various laws schools including those at the University of Texas, University of Pennsylvania and Harvard. Warren is a consumer protection advocate. She won the general election in November 2012 by defeating Republican Scott Brown and becoming the state’s first female US senator. Warren was considered as possible Democratic presidential candidate in 2016 and endorsed Hillary Clinton after all 50 states had voted.

Warren was born in 1949 in Oklahoma. She graduated with a BS from the University of Houston in 1970 with a degree in speech pathology & audiology. Warren graduated from the Rutgers University School of Law in 1976 and passed the bar examination afterwards.

The MA Senator voted as a Republican for several years until 1996 because she thought it was the best pro-market party. However, she started voting Democratic in 1995 because she thought that wasn’t the case. Since then she’s said she’s voted for both parties because she thinks there should be a balance of power.