If you are a Dem you can already say without hesitation that the US Supreme Court is political and stole one presidential election.
You can teach them about two wars fought for nothing.
You can teach them about the GOP trying to cut taxes for million airs while at the same time killing grandma with an end of Medicare and cuts in social security.
Teach about the Teabaggers who are KKK nuts.
Teach about what jerks the people on the right are.
BUT teach how demographic changes in America doom the current extreme republican party to a massive failures in the decade to come. The Non-White votes are growing rapidly and they HATE the GOP for good reasons. Young people of all colors including whites hate the GOP.
Now--grandma and grandpa will hate the GOP for the Social security and Medicare cuts the GOP has voted for in the House.