(New Hampshire Primary Source is a regular feature of WMUR s political coverage.)SELF-INTEREST CHARGED. The New Hampshire Democratic Party is suggesting that Gov. Chris Sununu had his self-interest in mind when he proposed a business tax cut in his fiscal 2022-2023 budget plan.NHDP Chair Raymond Buckley said in a statement Wednesday: “Governor Sununu proposed a budget that makes cuts to key programs that have been extremely beneficial to Granite Staters during the pandemic, like the Small Business Development Center, Child Protective Services, and Child Care Scholarships while he gets a tax break.”But, questioned by New Hampshire Primary Source, the NHDP stopped short of charging outright that the governor s personal business interests factored into his decision to propose the cut in the business enterprise tax.“Only the Governor can speak to why he proposed a budget that would benefit himself and his family at the expense of hard-working Granite Staters,” said party