As Harris considers a running mate, what are states' succession rules for VP candidates?

The 2024 White House campaign has thrust a handful of governors and senators into the mix for vice president. That has drawn attention to rules of succession in the contenders’ home states should they win. Each state has its own rules for naming replacements when elected officials leave office. Those rules carry significant political stakes in a year when former President Donald Trump has already selected Ohio Sen. JD Vance as his running mate and Vice President Kamala Harris considers her own choice for the No. 2 spot on the ticket. In all cases, the candidates can remain in office while campaigning. But the replacement process differs by state if they're elected.