Republican Dave McCormick has declared victory over Democratic Senator Bob Casey in Pennsylvania's pivotal U.S. Senate seat. However, ABC News has not yet projected a winner.

As counting continues, the president-elect's party is just three seats short of a majority in the House of Representatives ...

Arizona election results are full of intriguing messages. Here's what they mean and what we're looking for next, especially ...

View live results of the Missouri presidential election. See maps of county-by-county presidential election results in the ...

Follow live Senate race results during the 2024 general election. See Senate race outcomes and maps by state from NBC News as ...

Susie Wiles was named the new White House chief of staff by President-elect Donald Trump. Wiles will become the first woman ...