President Donald Trump will address a joint session of Congress Tuesday in a speech not officially a State of the Union address. Here's what to know.

In his fifth presidential address to Congress, President Donald Trump now presides over a Republican-dominated audience.

Since 1913, presidents normally deliver a State of the Union address outlining the nation’s priorities and achievements. But this year, there won't be a State of the Union, technically.

The idea of not calling the first address the State of the Union is a relatively new practice in American history. One stated belief is because when the president addresses Congress the first time ...