Among the newest examples is an ICE detention that took place in the same area California voters had to pass through to reach a ballot drop box.

The problem? No federal official can seize control of election administration from the states and counties, who hold the power run elections under the U.S. Constitution.

Key federal agencies failed to provide any records to back up President Donald Trump’s allegations that 278,000 noncitizens are improperly registered to vote, a nonpartisan government watchdog said in...