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.

Republican Alaska Gov. Mike Dunleavy has ordered an investigation into the Democratic candidate running for the U.S. Senate in the state after revelations that her campaign appeared to be involved in recruiting another candidate with the same name as Republican incumbent Dan Sullivan.

President Donald Trump on Friday told a rally for candidates in South Florida that U.S. warships returning from the Middle East could stop over in Cuba on their way back from the Iran war, his latest suggestion of taking an interventionist approach to the nearby country.