The concept of separation of church and state is a well-established legal and historical principle in the United States, not a recent invention by any political party.
"There's no such thing as separation of church and state. That's a made up thing that the Democrats have made up for years."

FactVerify
Source: factverify.com
Key Evidence
Thomas Jefferson's 1802 letter referencing a 'wall of separation' between church and state.
The First Amendment to the U.S. Constitution, which prohibits laws respecting an establishment of religion.
Numerous Supreme Court decisions affirming this principle as part of constitutional jurisprudence.
What the Evidence Shows
The phrase "separation of church and state" originates from a letter written by Thomas Jefferson in 1802, where he described the First Amendment's Establishment Clause as creating a "wall of separation" between religion and government. This principle has been repeatedly upheld by the U.S. Supreme Court in numerous rulings interpreting the Constitution to prohibit government endorsement or establishment of religion.
It is not a concept invented or fabricated by the Democratic Party or any modern political group. Instead, it reflects a foundational aspect of American constitutional law designed to protect religious freedom and prevent government interference in religious matters. While political debates sometimes arise over the application of this principle, its existence and legal basis are well documented and historically grounded.