2020 presidential election: Democrats who could run

2020 is not so far away, with speculation rampant on who will contend for the Democratic Party's nomination for president.

A number of lists have floated around with some realistic and some hopeful names. Former Mayor Michael Bloomberg has joined the ranks of possible contenders after re-registering with the Democratic Party, citing a potential constitutional crisis under Republican President Donald Trump.

Only time will tell who will ultimately run. But here's a look at some of the most common guesses and what they have said about a potential bid for the White House.

Michael Bloomberg: Maybe

Former New York City Mayor Michael Bloomberg re-registered as a Democrat on Wednesday, 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."

Joe Biden: Maybe

Former Vice President Joe 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.

Will he run in 2020?: Biden said he is not running for president "at this point," during an event in London on Oct. 10, while answering a question about whether he would be the best alternative to Trump when it comes to foreign policy, CNN reported.

Kirsten Gillibrand: Maybe

Some political experts believe New York Sen. Kirsten Gillibrand has been strategically placing herself toward the left, just in time to amass a progressive team for a possible presidential primary campaign. She has called for Trump to resign in the face of sexual harassment claims against him, as well as criticized former President Bill Clinton for not resigning when faced with allegations of sexual misconduct. Gillibrand also attended the Senate Judiciary Committee hearing to address sexual assault allegations against Brett Kavanaugh before he was confirmed to the U.S. Supreme Court, and later voiced her support for his accuser, Christine Blasey Ford.

Will she run in 2020?: Despite all the speculation, Gillibrand continues to profess she is only concerned with winning re-election to the Senate in November. "I'm focused entirely on running for Senate, so yes, I'm ruling it out," she said on May 1, 2017, in Fort Drum, New York. In July, she told The New York Times: "For me, it's all about 2018."


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 recent mockery of Christine Blasey Ford at a campaign rally. Some political experts have speculated that the lack of an outright denial of a presidential bid and her outspoken attacks against Trump's policies could mean a possible 2020 run.

Will she run in 2020?: Harris has acknowledged she's interested in running for president, stating she will "seriously take a look at" 2020 after Election Day on Nov. 6, Politico and Bloomberg reported. Harris will be one of the first potential candidates to visit South Carolina, which is the first southern state to hold a primary election, according to Politico.

Bernie Sanders: Maybe

Sen. Bernie Sanders may have lost the Democratic nomination in 2016, but he hasn't ruled out another run. Some of his supporters have already started planning for it - signs reading "Bernie 2020" were held up at a rally in Washington, D.C., after Trump's victory.

Will he run in 2020?: "I haven't made the decision about 2020, but I still think beating Donald Trump is the most important thing for this country. And I want to be ready if I do decide to run," Politico reported as being Sanders' response to his political advisers, who gathered for a meeting convened by the Vermont senator in Washington on Jan. 20 to flesh out the details of a possible presidential bid.

Since then Sanders has danced around the question of whether or not he will run. Later this month, though, Sanders plans to go on a nine-day tour to support Democratic candidates campaigning in the midterm elections, according to the The Washington Post. He'll be making appearances in several states that are key to a Democratic presidential bid.

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 recent Democratic gubernatorial debate that if he's re-elected in November, 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.

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.

Elizabeth Warren: Most likely

Many people on Twitter immediately started talking about Massachusetts Sen. Elizabeth Warren running for president after Trump's victory in November. Warren passed on running for the top office in 2016, and has said she does not regret that decision. However, it appears Warren has since had a change of heart about not running for president in the future.

Will she run in 2020?: "It's time for women to go to Washington and fix our broken government, and that includes a woman at the top," Warren said at a town hall in Massachusetts on Oct. 1. "So here's what I promise: After Nov. 6, I will take a hard look at running for president."

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."