The site will commemorate the 1969 Stonewall riots.
"That's typical of Donald Trump," Rafael Cruz said.
He called Trump's claims "ridiculous" and "shameful."
"I'm not happy about it," the Louisiana governor said.
A person reportedly attempted to stab the driver before trying to drive off with the bus.
"I completely understand why people would be upset about that," the comedian said.
Trump was referring to a National Enquirer story published last month.
Cruz has been widely mocked since calling a basketball hoop a "ring."
Did the Marine Corps misidentify one of the men in the photo of six servicemen raising an American flag at Iwo Jima during World War II?
"Even I would have helped" her get back up, Trump said.