Former U.S. Sen. Kelly Ayotte has won the governor’s race in New Hampshire, beating Democratic former Manchester Mayor Joyce Craig.

Ayotte or Craig will replace Republican Chris Sununu, who announced last year that he would not be seeking reelection. Sununu has been in office since 2016, serving four two-year terms. Before announcing he would not seek reelection, Sununu considered becoming a candidate for president, but he eventually decided not to run.

Kelly Ayotte and Joyce Craig are locked in NH governor's race that is closest in the nation. Here are 6 key issues that could prove decisive.