Former President Donald Trump should be thrown in jail if he does not immediately cease his attacks on jurors and witnesses in the Manhattan hush money trial, conservative attorney George Conway urged on MSNBC Thursday evening. The former president was already hit with $9,000 in contempt fines by Judge Juan Merchan earlier this week following a hearing on his violations of the gag order, and Merchan warned at the time that he wasn’t above sending Trump to jail as punishment for repeat offenses. He should be willing to follow through on that, Conway said. “We talked a little about the psycholog…