BISMARCK -- The Hillary Clinton campaign announced the endorsement of former high-ranking public officials from North Dakota on Monday -- just days after her husband stumped for her candidacy in Fargo and just a few weeks before the state's Democratic caucus-goers make their voices heard.

Former Democratic governor George Sinner and his wife, Jane Sinner, announced their support for the former first lady. They were joined by former U.S. Rep. Earl Pomeroy, former U.S. Sens. Byron Dorgan and Kent Conrad and former U.S. Attorney to North Dakota Tim Purdon.

"Let's remember when the Clinton team was on the field, America was winning," Conrad said in a statement issued by the Clinton campaign. "They led the longest economic expansion in American history, helped create 23 million jobs and balanced the budget.  Incomes were rising and poverty rates were falling sharply and America was at peace. ...(Hillary Clinton) took a direct and personal interest in helping us recover from the disaster in Grand Forks. I strongly support her for president of the United States."

Those endorsements also come on the heels of a visit to the state from Vermont senator Bernie Sanders, Clinton's rival for the nomination.

North Dakota's Democratic-NPL caucuses are June 7.