CONCORD - Hillary Clinton's team in New Hampshire is getting bigger.

Three more political operatives are being brought on board the operation in the first-in-the-nation primary state, a source close to the former secretary of state's campaign in waiting told NH1 News on Friday.

The three, Mike Ollen, Gene Martin and Liz Wester, will be running point on political outreach to grassroots leaders, local elected officials, and core Democratic constituencies in the Granite State. The source added that this is the latest sign that the former secretary of state “will not take New Hampshire or our first in the nation primary for granted and will work to earn the support of every Granite State voter.”

After coming in third in the 2008 Iowa caucuses, New Hampshire gave then-Sen. Clinton a much needed victory. She and then Sen. Barack Obama battled until June in an historic race for the Democratic presidential nomination.

Clinton will reportedly launch her second bid for the White House on Sunday, with the announcement coming on a video sent to supporters and spread through social media. Clinton is considered the overwhelming favorite to win the Democratic presidential nomination.

Ollen worked on President Obama's 2012 campaign in New Hampshire and Sen. Jeanne Shaheen's 2014 re-election campaign, and was Veterans and Military Families liaison for Congresswoman Annie Kuster.

Martin grew up in Manchester, New Hampshire and most recently was the Director of the NH Senate Democratic Caucus. Previously he was political director of the New Hampshire Democratic Party and managed the Committee to Elect House Democrats in 2012. He was also a volunteer for Clinton's first presidential campaign.

Wester was the Director of the Committee to Elect House Democrats in 2014 and Field Director for Standing Up for New Hampshire Families which protected New Hampshire's marriage equality law. She's also worked for Sen. Elizabeth Warren of Massachusetts and the Human Rights Campaign.

Last month, political aides close to Clinton confirmed that some top members of Shaheen's 2014 re-election campaign were hired to steer the former secretary of state's New Hampshire efforts. Mike Vlacich, Shaheen's campaign manager last year as she fended off Republican challenger former Sen. Scott Brown during a tough midterm climate for Democrats, was named as state director for the Clinton campaign in waiting. Also hired were Shaheen 2014 campaign political director Kari Thurman and communications director Harrell Kirstein, who are likely to work in the same positions for the expected Clinton campaign.