Critics alarmed by talk of revenge against Democrats and say second Trump term would pose unprecedented dangerDonald Trump’s extremist attacks on top Democrats as “the enemy from within” and talk of deploying the military against political foes if he wins the election are stark signs Trump will endanger the rule of law in America, say former US justice department officials and scholars.Trump’s threats – singling out ex-speaker Nancy Pelosi, Adam Schiff and others as “the enemy from within” and “more dangerous than China Russia” – jibe with his earlier incendiary talk of using a return to the White House to