Democratic presidential candidate Pete Buttigieg has hired four Iowa-based staffers to join his new campaign operations in the first-in-the-nation caucus state.

The South Bend, Indiana, mayor's campaign announced on Monday that Brendan McPhillips will serve as Iowa state director; Ben Halle will be Iowa communications director; Sydney Throop will serve as Iowa outreach coordinator; and Sara Goldstein will be regional organizing director.

The announcement comes on the same day that Buttigieg's campaign confirmed three staff hires in New Hampshire.

Buttigieg, who raised more than $7 million in the first quarter of the year, had indicated in fundraising emails that he planned to open offices in the early voting states along with his headquarters in South Bend.

As Buttigieg continues to draw attention in the crowded 2020 field — he's showing up near the top of recent polls and his visit to Iowa last month brought large crowds — there's been more focus on how he plans to staff up in a state where on-the-ground organizing can be critical.

According to the campaign, McPhillips comes to the Iowa operations after serving on several political campaigns, including being campaign manager for Andrew Gillum during his Democratic primary for Florida governor.

Halle, who previously worked for Washington State U.S. Rep. Adam Smith, most recently served in communications for the Planned Parenthood Federation of America.

Throop recently served as the Iowa regional director for Reason to Believe PAC, a federal political action committee launched by aides of former Democratic Massachusetts Gov. Deval Patrick.

The campaign said Goldstein, who previously worked for the Obama administration, has experienced field organizing experience in Iowa, Florida and Ohio.

Buttigieg's campaign said it plans to make additional staff hires in Iowa.