Democratic Senate candidate Mary Peltola denied Thursday that she knew anything about an effort to put another candidate on the Alaska ballot with the same name as the Republican incumbent as the Justice Department escalated a criminal investigation with new grand jury subpoenas.

Alaska's governor is ordering an investigation into Democrat Mary Peltola's Senate campaign over reports that it recruited a spoiler candidate to dilute Republican votes. That's as President Trump repeated calls for Peltola's prosecution during a trip to another deep red state where his endorsed candidate is facing headwinds. Liz Landers reports.