Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Republican presidential candidate Donald Trump greets guests at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Republican presidential candidate Donald Trump greets guests at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Republican presidential candidate Donald Trump speaks to guests at a campaign event on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Republican presidential candidate Donald Trump speaks to guests at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Republican presidential candidate Donald Trump greets guests at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Republican presidential candidate Donald Trump greets guests at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Republican presidential candidate Donald Trump greets guests at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Republican presidential candidate Donald Trump speaks to guests at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Republican presidential candidate Donald Trump speaks to guests at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Guests wait to greet Republican presidential candidate Donald Trump at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: A protestor heckles Republican presidential candidate Donald Trump while he speaks to guests at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Republican presidential candidate Donald Trump greets guests at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Guests wait to greet Republican presidential candidate Donald Trump at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Republican presidential candidate Donald Trump speaks to guests at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)

Donald Trump Campaigns In Grand Rapids

GRAND RAPIDS, MI - DECEMBER 21: Republican presidential candidate Donald Trump speaks to guests at a campaign rally on December 21, 2015 in Grand Rapids, Michigan. The full-house event was repeatedly interrupted by protestors. Trump continues to lead the most polls in the race for the Republican nomination for president. (Photo by Scott Olson/Getty Images)