The scandal: Congress passed a law barring Andrew Johnson from firing the secretary of war without its consent. When Johnson tried to remove him anyway, lawmakers impeached him, though they fell ...

President Donald Trump's handling of the Ukraine war has upset many Americans, but does it rise to the level of impeachment?

Democratic Texas Representative Al Green has hit back at Donald Trump after he was kicked out of the president's joint address to Congress on Tuesday, saying that he is "working on" Articles of ...

On Feb. 24, 2014, scientists announced that a tiny zircon crystal from Australia, 4.4 billion years old, was confirmed to be ...