Three of the four acts expired shortly after they were signed into law in the late 1700s. One remains active-and it's been at the center of constitutional debates ever since.

Seditious behavior punishable by death. That's how President Trump responded to former military members and intelligence officials who are now current Congress members after they put out this video.

Donald Trump is expected to invoke a rarely-used Alien Enemies Act of 1798 in an effort to ramp up deportations.

The conflict between a group of Democratic lawmaker veterans and President Donald Trump has now become a federal investigation after the president called their message to U.S. military members to ...

President Donald Trump accused several Democratic lawmakers of sedition for telling service members they can refuse unlawful orders. The lawmakers, including Sen. Mark Kelly, released a video ...

President Trump doubled down on his claim that a group of Democratic lawmakers with backgrounds in military or intelligence service have committed sedition by encouraging service members to defy ...

Rep. Jason Crow (D-Colo.) said he has received “very disturbing” threats in the wake of President Trump saying he and other Democratic lawmakers committed sedition after calling on service members to ...