3 things to watch in New Jersey’s primaries Tuesday

New Jersey holds congressional primaries Tuesday, facing a raft of problems with its rapid shift to nearly all-mail elections, cut-throat contests in two competitive districts, and some challenges to incumbents generating buzz.

Along with an alleged voter fraud scheme that led to four arrests in Paterson, state officials have been dealing with computer glitches, counting errors and misdelivered and destroyed ballots since the first round of local elections were held entirely by mail in May. Tuesday’s primaries aren’t expected to go any more smoothly.