2020 is not so far away, with speculation rampant on who will contend for the Democratic Party's nomination for president.
Several contenders have already declared their candidacies, while speculation circles around other public figures.
Here's a look at who will run and who may run, and what they have said about a bid for the White House.
Kirsten Gillibrand: Yes
In an interview with "The Late Show" host Stephen Colbert Tuesday, Sen. Kirsten Gillibrand took her first step toward running for president. Some political experts believe New York's U.S. senator has been strategically placing herself toward the left on key issues, just in time to amass a progressive team for a possible presidential primary campaign.
Will she run in 2020?: "I'm filing an exploratory committee for president of the United States, tonight," Gillibrand told Colbert.
Bill de Blasio: Maybe
Mayor Bill de Blasio is among several progressive Democrats who have openly toyed with the idea of running for president. Several trips outside of the city in 2018, including his visit to the United States-Mexico border during the since-rescinded immigrant family separation policy, suggest de Blasio is positioning himself for the national stage.
Will he run in 2020?: "I never rule things out because you never know what life brings, but I'm focused on the work I'm doing now and getting this message out," de Blasio said during a recent interview with Jake Tapper on CNN's "State of the Union."
Julian Castro: Yes
San Antonio Mayor Julian Castro will run for the Democratic nomination. Castro, 44, would be the first Hispanic president if elected. He served as secretary of Housing and Urban Development under President Obama.
At his campaign announcement on Jan. 12, Castro endorsed a "Medicare for all" healthcare plan and repeated support for the Black Lives Matter movement. He also criticized President Trump's border policies, saying while "we must have border security... there is a smart and humane way to do it. And there is no way in hell that caging children is keeping us safe."
Will he run in 2020?: Castro said he's "running for president because it's time for new leadership. Because it's time for new energy."
Tulsi Gabbard: Yes
Congresswoman Tulsi Gabbard of Hawaii has declared her intent to seek the Democratic nomination for president. The Iraq War veteran, 37, said the "issue of war and peace" would be the focus of her campaign.
Gabbard was elected to the House in 2012 after serving in the Hawaii State Legislature. She was the first Hindu and first American Samoan in Congress.
Perceived as a liberal member of the caucus, Gabbard endorsed Bernie Sanders for the presidency in 2016 after quitting a Democratic National Committee post over a disagreement on the number of debates between Sanders and candidate Hillary Clinton.
Will she run in 2020?: Gabbard said on Jan. 11: "I have decided to run and will be making a formal announcement within the next week."
Elizabeth Warren: Yes
Many people on Twitter immediately started talking about Massachusetts Sen. Elizabeth Warren running for president after President Donald Trump's victory in November 2016. Warren passed on running for the top office in 2016, and has said she does not regret that decision. However, it appears Warren is preparing to launch a campaign for 2020.
Will she run in 2020?: Warren announced on Dec. 31 that she is launching an exploratory committee for a 2020 presidential run. "Every person in America should be able to work hard, play by the same set of rules, & take care of themselves & the people they love. That's what I'm fighting for," Warren wrote on Twitter.
Joe Biden: Maybe
Biden has considered a run for the White House for many years. He was unsuccessful in 1988 and 2008, and he decided not to run in 2016, primarily because of the death of his oldest son in 2015. According to a New York Times article, Biden has told aids he is skeptical that other Democrats can win against President Donald Trump. If he decides to run, he is expected to be the early front-runner.
Will he run in 2020?: During an interview with "CBS This Morning" in October, he let voters in on what he considers important in his decision-making process.
"I don't think about the polling data. I think about whether or not I should run based on very private decisions relating to my family and the loss of my son and what I want to do with the rest of my life," Biden said. "But I don't think of it in terms of can I win, can I - will I lose. That's not part of the calculation."
Michael Bloomberg: Maybe
Bloomberg re-registered as a Democrat in October, sparking renewed speculation of a 2020 presidential bid. Although Bloomberg had been a longtime Democrat, the billionaire entrepreneur jumped party lines and ran for mayor of New York City as a Republican in 2001. In 2007, he left the GOP and became an independent.
Will he run in 2020?: While not explicitly commenting on a possible 2020 presidential campaign, Bloomberg cited a Constitutional crisis as his reason for registering as a Democrat. His statements have many political experts under the impression he is strongly considering a 2020 run.
"At key points in U.S. history, one of the two parties has served as a bulwark against those who threaten our Constitution. Two years ago at the Democratic Convention, I warned of those threats," Bloomberg wrote on Instagram. "Today, I have re-registered as a Democrat - I had been a member for most of my life - because we need Democrats to provide the checks and balance our nation so badly needs."
Kamala Harris: Most likely
The senator from California, who also served as the state's attorney general from 2011 to 2017, has shone through as a sharp interrogator of Trump officials while sitting on the Senate Judiciary Committee. She also has vocally blasted Trump on numerous occasions, including his mockery of Christine Blasey Ford at a campaign rally.
Will she run in 2020?: Harris has made several moves that indicate she will likely run for president, including a trip to South Carolina, which is the first southern state to hold a primary election, according to Politico. She told "Morning Joe" co-host Mika Brzezinski in December that she planned to decide by the end of 2018. "It's a very serious decision," she said. "Over the holiday, I will make that decision with my family."
Bernie Sanders: Maybe
Sen. Bernie Sanders may have lost the Democratic nomination in 2016, but he hasn't ruled out another run. Though he hasn't announced a decision, in December, one of his previous advisors met with potential campaign staff in South Carolina to discuss a possible presidential bid, CNBC reported.
Sanders also recently apologized after reports said female staffers on his 2016 presidential campaign were sexually harassed and said he was not aware of any allegations at the time.
Will he run in 2020?: "I will make that decision when I think it's appropriate," he said in a December interview with MSNBC. "If, and that is an if, I do decide to run, we're gonna be taking on the pharmaceutical industry and the insurance industry and Wall Street and all of the powerful special interests who now control much of what goes on in Congress. So it's not an easy decision. We gotta determine what kind of grassroots support exists and that's what we're looking at right now."
Cory Booker: Most likely
New Jersey Sen. Cory Booker's speech at the Democratic National Convention in July spurred talk of him making a future run for the White House. Booker has said he doesn't want to be president in the past, however recent appearances in Iowa have made him a likely contender.
Will he run in 2020?: "Of course the presidency will be something I consider. It would be irresponsible not to," Booker told the Intelligencer in a profile published in September. Political experts also spotlighted Booker's speech to Iowa Democrats hours after Kavanaugh's confirmation as his unofficial 2020 campaign launch.
Michelle Obama: Not happening
Talk of former first lady Michelle Obama running for president increased after her powerful Democratic National Convention speech in July 2016, but she and former President Barack Obama have said multiple times she is not interested in being president.
Will she run in 2020?: "This is why I'm not running for president," she said at a Klick Health Muse event in New York on March 27. "Because I think it's a better investment to invest in creating thousands of mes," adding that it is important for older leaders to step out and make room for a new generation and "new energy." She has dispelled the rumors of a possible presidential bid multiple times in the past, including her flat refusal at South by Southwest on March 16, 2016, when she said, "I will not run for president. No, nope, not going to do it."
The former president has also reiterated the decision, saying, "There are three things that are certain in life: death, taxes and Michelle is not running for president. That, I can tell you," as long ago as January 2016.
Andrew Cuomo: Probably not
Some political experts say New York Gov. Andrew Cuomo has had his eye on the White House for some time, but his relationship with the Clintons stopped him from running in 2016. However, the governor vowed during a Democratic gubernatorial debate in August that he would not seek the party's presidential nomination in 2020.
Will he run in 2020?: "The only caveat is if God strikes me dead, otherwise I will serve four years as governor of New York," Cuomo said.
Oprah Winfrey: No
The talk-show-host-turned-media-mogul has dangled the idea of a possible presidential bid several times, before snatching it away again. Hopes arose after she gave a moving speech at the Golden Globe Awards, especially after CNN reported two of her close friends saying she was "actively thinking" about it the day after. More recently, however, Winfrey has repeatedly shut down speculation about a possible run.
Will she run in 2020?: "I am definitely not running for president," she said on "Jimmy Kimmel Live" on Feb. 23. She admitted that she had thought about the idea and "listened to signs," but said that running for office wasn't something that interests her.
In an interview with British Vogue, Winfrey admitted that she couldn't stomach a presidential run, stating, "It's not a clean business. It would kill me."