It's cherry picking like this that gives the RG a bad name.  Obama has many many quotes from Letterman, Jon Stewart, Ellen show et al that are comparable to Trump's.   Remember the "special olympics" gaffe?

During the 2008 campaign, during an interview with ABC’s George Stephanopoulos, Obama said, “What I was suggesting-you’re absolutely right that John McCain has not talked about my Muslim faith,” before Stephanopoulos jumped in to help, saying ”your Christian faith.”

Most famous - "my grandmother was a typical white person"