The old bromide "Don't change horses in midstream" no doubt derived from this aversion to switching course.

"You don't change horses in midstream.

Nor does it, for that matter, mention that Mr. Bloomberg has an opponent at all in its "don't change horses in midstream" message.

And in a folksier earlier form, Abraham Lincoln is quoted as urging voters: "Don't change horses in midstream" during his own 1964 re-election.

My "W stand for Wrong" isn't working because too many hear "wrong" as beginning with an R. Instead, be ready when Bush's people trot out Lincoln's wartime "Don't Change Horses in Midstream."