Rejected voter registrations, malfunctioning voting machines, confusion among election workers. These problems and more have surfaced during early voting ahead of Tuesday's midterm elections. A rundown of voting problems so far around the country:

VOTING MACHINES

— Some Texas voters reported that balloting machines changed their straight-ticket selections to the other party in key races during early voting. State officials said the problem was connected to Hart eSlate voting machines, which are used in about 30 percent of counties statewide. They said problems can occur when voters complete an...