Booker snags first Senate endorsement
© Greg Nash
Sen. Bob Menendez (D-N.J.) endorsed fellow New Jersey Sen. Cory BookerCory BookerSenate Democrats reelect Schumer as leader by acclamation  Hill associations push for more diversity in lawmakers' staffs Sanders celebrates Biden-Harris victory: 'Thank God democracy won out' MORE's (D) presidential bid on Friday, making him the first senator to endorse a colleague in the party's crowded 2020 race. 

"I can't think of anyone better to represent and unite the American people. Cory makes a great friend, and will make an even greater president. I can't wait to support you on this journey—I'm all in!" Menendez said in a tweet on Friday.  
ADVERTISEMENT
Booker made his long-anticipated announcement that he was running for the party's 2020 nomination Friday morning, the first day of Black History Month.
 
Menendez's endorsement of Booker isn't a surprise. The two New Jersey lawmakers have been close partners in Congress. Booker also testified on Menendez's behalf during his corruption trial in 2017. 
 
Though Menendez is the first senator to endorse a fellow senator during the 2020 cycle, some lawmakers have thrown their support behind other candidates. Sen. Dianne FeinsteinDianne Emiel FeinsteinThe Hill's Morning Report - Presented by the UAE Embassy in Washington, DC - COVID-19 fears surround Thanksgiving holiday Feinstein departure from top post sets stage for Judiciary fight Whitehouse says Democratic caucus will decide future of Judiciary Committee MORE (D-Calif.) said last month that she would back former Vice President Joe BidenJoe BidenHarris says she has 'not yet' spoken to Pence Kamala Harris, Stacey Abrams among nominees for Time magazine's 2020 Person of the Year Obama: Republican Party members believe 'white males are victims' MORE if he ran. Feinstein's California counterpart, Sen. Kamala HarrisKamala HarrisHarris says she has 'not yet' spoken to Pence Kamala Harris, Stacey Abrams among nominees for Time magazine's 2020 Person of the Year Mexican president breaks with other world leaders, refusing to acknowledge Biden win until election is finalized MORE (D-Calif.), is also running for president and won Rep. Ted LieuTed W. LieuHouse Democrats pick Aguilar as No. 6 leader in next Congress Democrats to determine leaders after disappointing election Mark Cuban asks voters to 'reconsider' donating to Georgia run-off elections MORE's (D-Calif.) endorsement. 
 
Several Senate Democrats have already announced White House bids, including Sens. Kirsten GillibrandKirsten GillibrandDemocratic senators urge Facebook to take action on anti-Muslim bigotry Social media responds to Harris making history: 'I feel like our ancestors are rejoicing' Ocasio-Cortez says she doesn't plan on 'staying in the House forever' MORE (D-N.Y.) and Elizabeth WarrenElizabeth WarrenKamala Harris, Stacey Abrams among nominees for Time magazine's 2020 Person of the Year Mnuchin to put 5B in COVID-19 relief funds beyond successor's reach No, the government cannot seize, break or 'bypass' pharmaceutical patents — even for COVID-19 MORE (D-Mass.), or are viewed as potential 2020 contenders like Sen. Sherrod BrownSherrod Campbell BrownOn The Money: Democrats accuse Mnuchin of sabotaging economy in dispute with Fed | Trump administration proposal takes aim at bank pledges to avoid fossil fuel financing | JPMorgan: Economy will shrink in first quarter due to COVID-19 spike Democrats accuse Mnuchin of sabotaging economy in dispute with Fed McSally, staff asked to break up maskless photo op inside Capitol MORE (D-Ohio) and independent Bernie SandersBernie SandersClyburn: Biden falling short on naming Black figures to top posts Prepare for buyers' remorse when Biden/Harris nationalize health care Biden: 'Difficult decision' to staff administration with House, Senate members MORE (Vt.), who caucuses with Democrats. 
 
 
Asked if he would support Gillibrand, Schumer told reporters that they work "very well" together, but he was not "mixing in" the 2020 fight. 
 
"I have said to every candidate who has asked me, let a thousand flowers bloom. Let’s get a lot of people out there and see who the best candidate to beat Donald TrumpDonald John TrumpUSAID administrator tests positive for COVID-19 Kamala Harris, Stacey Abrams among nominees for Time magazine's 2020 Person of the Year DOJ appeals ruling preventing it from replacing Trump in E. Jean Carroll defamation lawsuit MORE is. I don’t know who that is right now," Schumer said.