Jackson's path differs from Donald Trump's, and the 72-year-old healthcare magnate and investor brings a vastly different persona to his first campaign. Unlike Trump, who was born to wealth, Jackson spent his early years bouncing through foster homes before launching his first company as a young man.

Marva Cook was adopted as a toddler and had always assumed she was a U.S. citizen, she told Homeland Security investigators earlier this month, according to the criminal complaint.

One of them is a Republican senator and ally of the president. The other is a retired schoolteacher whom Republicans accuse of being a Democratic plant to siphon away votes.

The letters are the latest escalation in a legal battle between California and President Donald Trump's Department of Justice, which has recently focused on the state in its efforts to root out noncitizen voting ahead of the midterm elections.

President Trump is making a final push to help Republicans maintain control of Congress as some of the most closely watched races remain competitive. But the battle for the Senate is also playing out in court. In Alaska, the Trump administration sued to potentially block certification of the election if the Republican incumbent loses. White House correspondent Liz Landers reports.

It's been more than a decade since Iowa has had a Democratic governor or senator. But this year, with the incumbents retiring, both races are competitive. As Peter Tubbs at Iowa PBS reports, record-high diesel prices have hit the state's agriculture industry particularly hard and could influence the midterm elections.