Leyla. Beto O'Rourke announces he's running for president in 2020. CNN. 2019-03-14 [2019-03-14]. （原始内容存档于2019-03-14）. Democrat Beto O'Rourke ends presidential

柯瑞·布克2020年美國總統競選活動

Siders, David. Beto announces bid for president. Politico. March 14, 2019 [March 14, 2019]. （原始内容存档于2021-01-20）（英语）. Beto O'Rourke ends White House

2019年美國

[2019-11-03]. （原始内容存档于2019-11-01）（英语）. Burns, Alexander. Beto O’Rourke Is Dropping Out of the Presidential Race. The New York Times. 2019-11-01 [2019-11-01]

Found in articles

2020年美國總統選舉民主黨初選

Leyla. Beto O'Rourke announces he's running for president in 2020. CNN. 2019-03-14 [2019-03-14]. （原始内容存档于2019-03-14）. Democrat Beto O'Rourke ends presidential

柯瑞·布克2020年美國總統競選活動

Siders, David. Beto announces bid for president. Politico. March 14, 2019 [March 14, 2019]. （原始内容存档于2021-01-20）（英语）. Beto O'Rourke ends White House

2019年美國

[2019-11-03]. （原始内容存档于2019-11-01）（英语）. Burns, Alexander. Beto O’Rourke Is Dropping Out of the Presidential Race. The New York Times. 2019-11-01 [2019-11-01]