WOLFEBORO, N.H. — Republican presidential candidate Mitt Romney says the nation’s ongoing sluggish job growth is unacceptable and his policies would work better than President Barack Obama’s.

‘‘This kick in the gut has got to end,’’ Romney told reporters Friday morning.

Romney said Friday’s report that only 80,000 jobs were created in June is evidence that Obama’s tax, energy, and regulatory policies are hampering growth.

‘‘American families are struggling; there’s a lot of misery in America today,’’ he said, interrupting his vacation in New Hampshire to react to the jobs numbers. ‘‘The president’s policies have not gotten America working again. And the president is going to have to stand up and take responsibility for it.’’

Romney said he would lower taxes, reduce regulations on energy producers, open new trade with Latin America, and crack down on China for what he described as unfair practices that steal American jobs.

He said the nation’s 8.2 percent unemployment rate doesn’t reflect the number of Americans who are underemployed or have quit looking for work.

Romney spoke 10 minutes and took five questions from reporters in New Hampshire, where he is vacationing.