WASHINGTON — A mostly smooth Election Day nationwide was marred in multiple battleground states Tuesday by a series of bomb ...

Bomb threats have been reported in several other battleground states, including Georgia, Pennsylvania, Michigan, and ...

Four polling locations in Navajo County were targeted by Election Day bomb threats from Russian email domains, according to ...

No bombs were found, and disruptions to voting were minimal. The FBI said threats made in Georgia, Wisconsin, Michigan and ...

Polling locations in key US states received bomb threats on an election day; the FBI deemed them non-credible and linked to ...

Multiple bomb threats made to Arizona polling locations were "unsubstantiated" and believed to be made by a foreign enemy, ...

Bomb threats that U.S. officials linked to Russian email domains disrupted what was generally a smooth voting experience ...

The U.S. saw a rash of discredited bomb threats called in at polling places in multiple states on Election Day, in some cases ...

Polling places in Democratic-leaning areas of five swing states received bomb threats that officials said likely came from ...

WASHINGTON – Bomb threats wreaked havoc at dozens of polling sites across at least five pivotal swing states on Tuesday.

Wisconsin was one of four states that received non-credible bomb threats linked to Russia on Tuesday, according to the FBI.

From the polling place to the courtroom, ABC News tracks the latest election security developments as experts warn about the ...