Rush did an analysis. ...published here last night...that posits Trump touts the liberal line to steal votes from the dark side: an ultimately harmless ploy to lock his nomination in the next couple primaries. This is the first thing Trump has done that makes me reconsider supporting him; but, I’ll give him a pass on it: strategerizing that may save our nation, ultimately.
Trump is doing it to help his viability because Cruz is on the march.
Many on the Left see a kindred spirit in Trump.