The Brief

PHOENIX - The Republican field for Arizona governor is growing, with Rep. David Schweikert entering a primary race that already includes two candidates endorsed by President Donald Trump.

What we know:

Schweikert's announcement means there are now three Republicans vying for the nomination to challenge incumbent Gov. Katie Hobbs, a Democrat who is seeking re-election. The other two Republican candidates, Karrin Taylor Robson and Rep. Andy Biggs – both have the support of Trump.

Political experts say the Trump endorsement will be a key factor in the primary.

"The most important endorsement in our lifetime, the one that has meant the most, is that of Donald Trump in the Republican primary, any Republican primary anywhere," said Stan Barnes, president of Copper State Co

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