"Norms" means that:

1. Republicans are held far beyond the strict letter of the law. Pray outside an abortion clinic? You get federal felony charges.

You duck a subpoena from Congress? That's a year in jail. Held in contempt of Congress? You pay.
You speak out at a school board meeting? The FBI gets out their rubber glove.
Start a conservative 501(c)(3)? Prepare to have the IRS up your kazoo.

2. democrats aren't just allowed to skate, they're allowed to brazen break laws and pay zero consequences.

Riot and destroy your city? Nada. Riot and go across state lines to destroy another city? A-ok.
Assault people leaving political rallies? That's encouraged.
Assault police officers? Encouraged.
Duck subpoenas from Congress? Encouraged.
Lie to Congress? Encouraged.

Firebomb pregnancy centers? Doesn't merit an investigation. However, garage door pulls do.