Donald Trump has already given New York Justice Juan Merchan ample reason to sentence him to prison for falsifying business records, a columnist wrote Tuesday. Each of the 34 counts he’s been convicted of carries a maximum four-year sentence, although they would run concurrently. Washington Post columnist Jennifer Rubin argued that many convictions for Class E felonies do result in prison time — and she said Trump’s “conduct and character” should be enough to put him behind bars in this case. “It is not ‘simply’ that Trump has multiple civil judgments against him (e.g., sexually abusing and de…