I am guessing she knows that and was using a little hyperbole to attack the silencing attacks by leftists. Hyperbole is not very presidential but I love that she rushed to Carrie’s aid.
Even if it is hyperbole (and I fail to see how it is - why is it any better for her to say “First Amendment” rather than simply “free speech”), mistakes like this feed right into the liberal/MSM attacks on Palin. If she’s going to succeed on the national stage, she needs to be a bit more precise with her language.