Trump ally Kari Lake launches Arizona Senate bid against Sinema

Kari Lake, former Republican candidate for Arizona governor, is launching a Senate campaign on October 10.
Lake continues to deny her gubernatorial defeat and promote election fraud claims aligned with Trump.
The race could determine control of the closely divided Senate in the 2024 elections.
Lake will challenge independent incumbent Senator Kyrsten Sinema and faces competition from Rep. Ruben Gallego.
Arizona is seen as a key battleground state for both the Senate and the presidency in 2024.