Kyrsten Sinema leaves Democratic Party, adding drama to tight U.S. Senate margin

WASHINGTON,  (Reuters) – U.S. Senator Kyrsten Sinema of Arizona is leaving the Democratic Party to become an independent, she said on Friday, just days after Democrats won a Senate race in Georgia and secured 51 seats in the 100-member chamber riven by deep political divisions.

“Like a lot of Arizonans, I have never fit perfectly in either national party,” Sinema said in an article for the Arizona Republic newspaper. 

An aide would not say whether Sinema would continue to caucus with Democrats.

Sinema herself, however, said she would not caucus with the Republican Party, according to an interview Politico published yesterday. If that holds, Democrats could still maintain greater governing control in the closely divided chamber, blunting the impact of her defection.

Sinema’s surprise announcement came as the future of Democratic President Joe Biden’s agenda in the second half of his term was already clouded by Republicans set to take control of the House of Representatives on Jan. 3.