The GOP VP candidate swipes at Sen. Biden at a midday rally in Cedar Rapids, Iowa.
Responds to Biden's earlier comment about raising taxes on high-earners: "To the rest of America that's not patriotism. Raising taxes is about killing jobs and hurting small businesses and making things worse."
"This isn't about anyone's patriotism— it's about Barack Obama's poor judgment."
Watch video above. Read excerpts of remarks here.
Also accuses Obama of not fighting for Americans and not seeking bipartisan compromise.
Rally interrupted several times by anti-McCain-Palin protesters.

