A more thorough explanation:

Texas v. Johnson (1989) is a case that went to the U.S. Supreme Court. The Court decided that state laws that make it illegal to burn the American flag are against the First Amendment's protection of freedom of speech.

In 1984, Gregory Lee Johnson burned an American flag at a political demonstration during the Republican National Convention. Texas law said that burning a flag was a crime, and Johnson was sentenced to one year in prison. The Texas Criminal Court of Appeals said that burning the flag was protected political speech under the First Amendment, and Johnson's conviction was reversed. Texas appealed to the U.S. Supreme Court, who agreed to hear the case.

In a 5-4 decision, the U.S. Supreme Court said that the Texas law was against the First Amendment. The Court said that burning the flag was a way to express a message, and that Texas did not have a good enough reason to make it illegal. Texas said that it wanted to prevent disturbances of the peace and keep the flag as a symbol of national unity. The Court said that these reasons were not good enough to make burning the flag illegal.

The Court said that governments cannot stop people from expressing their political opinions just because they find them offensive. Justice Kennedy wrote a separate opinion that said that the principles that the American flag stands for are reflected in the Court's decision. Chief Justice Rehnquist disagreed and said that the flag is not just another political symbol, but is special to American culture.

Example: If someone burns the American flag as a way to protest something, they are allowed to do so because of the First Amendment.

This example shows how the First Amendment protects people's right to express their political opinions, even if it involves burning the American flag.