Trump challenges Maricopa County election integrity over 3,000 ballot error.
Context
What happened: Trump criticized Maricopa County election officials after about 3,000 early ballots were mistakenly mailed to voters. The county recorder's office blamed a vendor error and said the ballots remain valid.
Key numbers: About 3,000 ballots, or 3,126, were mailed early. Maricopa County has about 2.5 million registered voters. The ballots went out six days ahead of schedule.
Why it matters: The county said the miscue would not affect voters who received the ballots, and Runbeck's CEO said it was human error, not intentional. Trump has focused election claims on the county before.