Arizona Democrat Ruben Gallego announces Senate bid in challenge to Kyrsten Sinema

Democratic Rep. Ruben Gallego of Arizona on Monday announced his campaign for US Senate, setting up a potential 2024 clash with Sen. Kyrsten Sinema, who recently switched her party affiliation from Democrat to independent.

​Democratic Rep. Ruben Gallego of Arizona on Monday announced his campaign for US Senate, setting up a potential 2024 clash with Sen. Kyrsten Sinema, who recently switched her party affiliation from Democrat to independent.