If Trump is not the Republican candidate, the Democrats don’t need a 3rd party; they will win again in a war of attrition because so many people will stay home and not vote.
If Trump is the Republican candidate, the Democrat machine of ballot-management, crime and fraud will destroy him. The damage will also continue down-ticket.
Donald Trump would be a disastrous candidate. Pure and simple. You want Hillary and a Democrat Senate? Nominate Trump.
If the Trump is the Republican nominee and Hillary Clinton is the Democratic nominee, her strongest support will come from moderate Republicans.
No question about it. No other candidate can win back the White and Reagan Democrat vote. The White vote is ALL that matters in 2016, as it did in 2012 with a GOP that didn't get it, and made no effort to seek it.