FILE - In this April 14, 2016 file photo, Republican presidential candidate Donald Trump speaks in Patchogue, N.Y. When it comes to rudeness in 2016 politics, the Republican presidential contest wins in a landslide. A new poll by the Associated Press-NORC Center for Public Affairs Research shows that 78 percent of Americans, including most Republicans, see the GOP race as discourteous. Only about half as many, 41 percent, say the same about the Democratic campaign. Eight in 10 people say remarks about race or gender and sexuality are unacceptable in public places, and that political leaders should be held to a higher standard of behavior than other people. (AP Photo/Mary Altaffer, File)
FILE - In this April 14, 2016 file photo, Republican presidential candidate Donald Trump speaks in Patchogue, N.Y. When it comes to rudeness in 2016 politics, the Republican presidential contest wins in a landslide. A new poll by the Associated Press-NORC Center for Public Affairs Research shows that 78 percent of Americans, including most Republicans, see the GOP race as discourteous. Only about half as many, 41 percent, say the same about the Democratic campaign. Eight in 10 people say remarks about race or gender and sexuality are unacceptable in public places, and that political leaders should be held to a higher standard of behavior than other people. (AP Photo/Mary Altaffer, File) Credit: Mary Altaffer

WASHINGTON — Ask Americans about bad manners in the 2016 presidential campaign and the conversation shifts immediately to Donald Trump, the GOP front-runner who has branded his critics, “little,” “lyin,” “low-energy” and worse.

“I don’t recall anyone stirring up as much of a fuss as Mr. Trump,” says Sidney Waldman, 81, a retired book store owner in Key West, Fla.

When it comes to rudeness in 2016 politics, the Republican presidential contest wins in a landslide, a new poll by the Associated Press-NORC Center for Public Affairs Research has found.