Final answer:
The Supreme Court's use of selective incorporation has expanded and strengthened the freedom of expression in the United States by requiring the states to respect the protections of the First Amendment. It ensures that individuals' rights to freedom of speech, press, assembly, and petition are safeguarded at both the national and state levels.
Step-by-step explanation:
The Supreme Court's use of selective incorporation has had a positive effect on the freedom of expression. Selective incorporation is the process by which the protections of the Bill of Rights are applied to the states through the Fourteenth Amendment. This means that the states must also respect freedom of expression, as guaranteed by the First Amendment.
For example, in the landmark case of Gitlow v. New York in 1925, the Supreme Court held that the First Amendment's protection of free speech applies to the states through the Due Process Clause of the Fourteenth Amendment. This decision expanded the protection of freedom of expression to state governments, ensuring that individuals' rights to freedom of speech, press, assembly, and petition are safeguarded at both the national and state levels.
Overall, selective incorporation has expanded and strengthened the freedom of expression by ensuring that the states are bound by the same constitutional principles as the federal government, safeguarding individuals' rights to express their opinions, engage in peaceful protests, and access information without undue interference or censorship.
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