Trump has always been a republican.
According to the New York City Board of Elections, Trump has changed his party affiliation five times since registering as a Republican in Manhattan in 1987
July 1987 Republican
October 1999 Independence Party
August 2001 Democrat
September 2009 Republican
December 2011 No party affiliation (independent)
April 2012 Republican
Not true. He is a lifelong liberal who only registered as a Republican in 2009.