As I recall, Ronald Reagan was a Democrat, head of the Screen Actors Guild for many years, and was, at one time, known as “Red Ronnie” ... But, of course, it is an axiom here on FR that a zebra cannot change its stripes ... However, humans are not zebras ... You and others would do well to remember that fact.
Now, in all honesty, I too have a few misgivings about Mr. Trump - not least of which is his blind acceptance, as “law of the land,” the repulsive decision of five reprobate judges that same-sex “marriage” is a right. Notwithstanding, what shall you do if Mr. trump were to win the Republican nomination?
President Reagan did change his stripes. But he was conservative decades before he ran for president. We can’t say that about liberal Donald Trump as he is liberal to this day and only registered as a Republican in 2009. You and others would do well to remember those facts.
I would never vote for a lifelong liberal like Donald Trump. So I would probably write in the name of the only conservative in the race, Ted Cruz.