Other recent polling has supported “toss-up” ratings for the race from election handicappers, like the Cook Political Report. Another survey, released last week by Fox News, showed the two candidates tied in their support from likely voters in the state, while a Suffolk University poll conducted earlier this month similarly found the Democrat with a 2-point advantage. Collins is running for a sixth term in Congress. If she is successful in the general election, she will become the longest-serving senator in the state’s history. Despite Jackson’s lead in the Marist poll, 58 percent of respondents said they believe the Republican...