Trump should go after the Clintons for “Arkanside”, Vince Foster, the banks they looted, Paula Jones, Johnny Chung and all their other criminal acts. Trump can also bring up the murder of Ron Brown, the Khobar Towers bombing, the embassy bombings, the attack on the U.S.S Cole and don't forget that ugly as sin Monica Lewinski and the many six figure no show jobs Clinton got for her.
Keep up the pressure until they're both crying uncontrollably and begging him to stop.
Then really turn up the heat.