Hawaii Sen. Mazie Hirono, Minnesota Sen. Tina Smith, Virginia Sen. Tim Kaine and California Sen. Laphonza Butler also said they would support Harris, as did a growing number of Democratic House lawmakers.
Democrats rally around Kamala Harris as she vows to 'earn and win' party nomination for president
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In an interview with the AP, Butler said she hopes that her appointment points toward progress in the larger cause of representation.
After years of erasure, Black queer leaders rise to prominence in Congress and activism
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