The race for the Democratic nomination to take on President Donald Trump in 2020 is well underway, and a large number of candidates are already in the presidential field. Four such candidates are current members of Congress. 

Roll Call has compiled a running list of those members who have officially announced their candidacy or have formed exploratory committees, with data showing how their votes on the Hill aligned with the president, their own party and how their attendance at votes stacks up, according to CQ’s Vote Studies.  

Check back as the list grows. 

Sen. Elizabeth Warren, D-Mass.

By forming an exploratory committee on Dec. 31, 2018 Warren became the first major candidate to enter the race for the Democratic presidential nomination.

Rep. Tulsi Gabbard, D-Hawaii

Gabbard, who announced her candidacy for president on January 11 as a guest on CNN, is the only current member of the House of Representatives to formally toss her hat into the ring.

Sen. Kirsten Gillibrand, D-N.Y.

Gillibrand announced the formation of an exploratory committee for the Democratic presidential nomination on Jan. 15. In the days since, the New York senator’s campaign made a swing through Iowa to test the political waters. 

Sen. Kamala Harris, D-Calif.

Harris is only two years into her first term as a California senator, but she enters the race for the Democratic nomination as a presumptive top contender. Harris’ first rally, on Jan. 27 in Oakland, California, drew a crowd estimated at over 20,000 people. 

Sen. Cory Booker, D-N.J. 

Booker entered the Democratic field for president on Feb. 1 with a message of love and hope.

The New Jersey senator is social media savvy and as Mayor of Newark was known as the Mayor who would shovel your driveway. 

Sen. Amy Klobuchar, D-Minn.

Senator Amy Klobuchar announced her candidacy for president Sunday in the middle of a snowstorm in Minneapolis, Minnesota.

Klobuchar is now the sixth senator to enter the race for the Democratic nomination for the presidency.

Sen. Bernie Sanders, D-Vt.

On Feb. 19, Sen. Bernie Sanders became the eighth congressional member to announce his candidacy for the Democratic nomination for president.

The Vermont independent senator enters a crowded and diverse field, this time as a frontrunner, as this will be Sanders’s second bid for the presidency.

Former Rep. John Delaney, D-Md.

Most Democrats running for president announced their candidacies in recent months, but former congressman John Delaney made his decision in July 2017 — a full 30 months before the Iowa caucuses.

Watch as Roll Call provides some congressional basics on his time as a representative from Maryland.

Gov. Jay Inslee, D-Wash.

Washington Governor and former Congressman Jay Inslee launched a campaign for the Democratic presidential nomination on March 1.

Inslee’s campaign platform sets climate change as its highest priority.