The Trump administration plans on sending election monitors to 15 jurisdictions in six states—four of which are deep blue, with the remaining being swing states—for the remaining primary elections this summer.

Monitors will be placed in Arizona, Michigan, Massachusetts, Minnesota, New Hampshire, and Virginia. The Justice Department’s Civil Rights Division chief Harmeet Dhillon made the announcement in a video posted on social media Tuesday.

“The Department of Justice, like it has in Republican and Democrat administrations in the past, is sending election monitors to places where there have been problems with the integrity of elections,” Dhillon later said on the Joe Pags Show, a conservative radio show, before reading the list of states and the specific areas that would be watched.