The United States Congressional Baseball Game is when members of Congress, who are the people who make laws for the country, play a game of baseball against each other. It's kind of like when you play a game of tee-ball or little league with your friends, but imagine if all the players were grown-ups who worked in the government.
Usually, the game happens every year at a baseball stadium in Washington, DC. The players are split into two teams, one made up of Democrats and the other made up of Republicans. Democrats and Republicans are two different groups of politicians who have different ideas on how the country should be run.
One of the reasons they play this game is to raise money for charity. This means that people who come to watch the game or buy merchandise can give money that will go to help people in need. It's always good to help others!
The game is also a way for the politicians to show that even though they might have different ideas on how to run the country, they can still get along and have fun together. They don't have to be enemies just because they have different opinions.
So, that's what the United States Congressional Baseball Game is all about. It's a friendly game of baseball played by politicians to raise money for charity and show that even though they might disagree on some things, they can still be friends.