The Latest: Trump visits Sept. 11 memorial, museum in NYC

Republican presidential candidate Donald Trump acknowledges supporters while leaving Trump Tower on his way to visit the World Trade Center Museum, Saturday, April 9, 2016, in New York. (AP Photo/Julio Cortez) (The Associated Press)

Republican presidential candidate Donald Trump, right, waves as he walks with his wife Melania Trump, center, during his arrival to the World Trade Center Museum, Saturday, April 9, 2016, in New York. (AP Photo/Julio Cortez) (The Associated Press)

Democratic presidential candidate, Sen. Bernie Sanders, I-Vt., kisses his wife Jane as they arrive on stage during a campaign event, Saturday, April 9, 2016, in New York. (AP Photo/Mary Altaffer) (The Associated Press)

The Latest on the presidential campaign, with the focus Saturday on the delegate hunt for Republicans in Colorado and Democrats in Wyoming, while several candidates campaign in New York, which holds its primary April 19 (all times Eastern Daylight Time):

12:45 p.m.

Donald Trump has visited the National Sept. 11 Memorial and Museum in Lower Manhattan.

The Republican presidential front-runner arrived shortly after noon and spent about 30 minutes touring the museum.

He left without speaking to members of the media who were invited along for the visit by the campaign.

Trump has criticized rival Ted Cruz for comments that Cruz made at a GOP debate criticizing New York values.

In defending his home city, Trump has pointed to New York's response to the Sept. 11 attacks.