Fact
When is it illegal to lie?
- impersonating a federal agent (18 USC 912)
- lying to a federal agent (18 USC 1001);
- health care fraud (18 USC 1035 and 1347);
- mail fraud (18 USC 1341);
- wire fraud (18 USC 1343);
- perjury (18 USC 1623);
- False Claims Act (31 USC 3729-33);
- and libel and slander (common law).
Other
Are these laws in conflict with the First Amendment
The First Amendment usually does not protect false statements when they are; made knowingly and made with with some corrupt purpose
Does the First Amendment Protect Deliberate Lies?
Do Politicians Have a First Amendment Right To Lie to You? (reason.com)
Opinion
Lying elected officials and government employees acting know falsehoods are causing a more divided America.
Laws need to be in place for politicians to be accountable for lying and providing false information. Penalties need to severe.
