Is Trump growing the Republican Party?

Trump will get more GOP primary votes than anyone in history (because more people are voting) via The Washington Post

Trump will get more GOP primary votes than anyone in history (because more people are voting)
via The Washington Post

Donald Trump Is Not Expanding the GOP via POLITICO.com

Donald Trump Is Not Expanding the GOP
via POLITICO.com

THE BASICS:  Phil Bump of the Washington Post details how Trump is on pace to receive a record number of votes in the GOP primary because more people are voting for Trump. However, Shane Goldmacher argues that while Trump has caused more interest and voter turnout for the GOP primaries, he has not actually attracted new people to the Republican Party and therefore is not growing the party.