Still, bright red warning signs are flashing for Trump. Here are five things New Hampshire told us about the primary as it moves to Nevada, South Carolina, Michigan and beyond. People sit outside of Oyster River High school with signs in support of Joe Biden's write-in campaign in Durham, New Hampshire. But in the run-up to the New Hampshire primary, allies of both Biden and Trump gave Social Security an enormous amount of play. But the Biden campaign has repeatedly — and sometimes misleadingly — hammered him on the issue, suggesting past remarks make him an untrustworthy steward of the program.