Nixon just wanted to sic the IRS on his political enemies.
President Clinton and her husband DID sic the IRS on dozens of their political enemies.
Sort of off topic, but since you're speaking about liberals sicking the IRS onto people..Let's not forget about Sen. Chuck Schumers opposition research underlings recently caught with "the opposition's" credit reports! What do you suppose they were they gonna do with that, eh? Definite liberal pattern here!