(Left) Pro-Donald Trump buttons for sale on the street in Cleveland. (Center) A large screen truck with a photo of President Ronald Reagan can be seen through a crowd as it is stopped at a light. (Right) Supporters listen to speakers at a pro-Trump rally on Tuesday.
Gabriella Demczuk for NPR
Former President George W. Bush (above); his father, former President George H.W. Bush; and brother Jeb Bush, who ran for president this year, will not be attending this week's Republican National Convention in Cleveland.
People gather onstage July 16 as preparations take place inside Quicken Loans Arena for the Republican National Convention in Cleveland. The convention is set to run July 18-21.
Ahead of the Republican National Convention, to be held at the Quicken Loans Arena in downtown Cleveland, anti-Donald Trump groups are trying to change delegate rules in a bid to undermine the presumptive nominee.
Gene J. Puskar/AP
Republican presidential candidate Donald Trump speaks during a campaign rally at the Sharonville Convention Center on July 6 in Cincinnati. He heads to Capitol Hill today.
Attorney William Johnson, a leader of the American Freedom Party and self-proclaimed white nationalist, made it onto Trump's list of delegates. He now says he will not attend the convention.
Jae C. Hong/AP
Donald Trump speaks at a campaign rally April 6 in Bethpage, N.Y. While New York was key for Trump in racking up delegates, there aren't many contests remaining and he is still short of a majority.
Andrew Renneisen/Getty Images
Curly Haugland, a Bismarck businessman and North Dakota representative on the Republican National Committee, reads a newspaper on the North Dakota state Republican convention stage in 2010.