In November, Mr. Gallego, who has no major primary challengers, is likely to face Kari Lake, a former television anchor and close ally of former President Donald J. Trump.
Ms. Lake faces a primary challenger, Sheriff Mark Lamb of Pinal County, but leads him by a wide margin in polls.
So far, Mr. Gallego has raised more money than Ms. Lake, who has not yet released her most recent quarterly fund-raising numbers.
Ms. Lake is a more recent entrant to the race than Mr. Gallego, who announced his run in January 2023.
In the last quarter of 2023, his campaign raised $3.3 million, while hers netted $2.1 million.
Persons:
Ruben Gallego, Gallego, Kari Lake, Donald J, Kyrsten Sinema, Sheriff Mark Lamb
Organizations:
Democratic, Mr, Marine, Trump, Sheriff
Locations:
Arizona, Pinal County