Trump is planning on hosting tele-rallies for Ciattarelli, in which he will address supporters by phone. Meanwhile, allies and surrogates to the president are helping to raise millions of dollars for a pro-Ciattarelli super PAC, according to a person familiar with the discussions. Senior Republican strategists say Trump could be most helpful by energizing his voters during an off year-election, when turnout is likely to be down. In recent elections, Republicans have struggled to turn out voters when Trump isn't on the ballot.