McCain's dishonest, dishonorable attack ad

John McCain has a new TV ad out, in which he cites the bogus controversy over Barack Obama's cancelled visit to wounded soldiers in Germany as evidence that Obama isn't "always there for our troops." Worse, the ad states -- falsely -- that the reason Obama cancelled the trip is because the "Pentagon wouldn't allow him to bring cameras." I repeat: that statement is a lie. It is not true at all.

An Obama spokesman responded to the ad by saying, "John McCain is an honorable man who is running an increasingly dishonorable campaign." That's true. While no politician, Obama included, is as pure as the driven snow, this is a new low in the general-election campaign. I know politics ain't beanbag, but I did not expect to be disgusted by McCain campaign tactics. And yet here we are. Have you no shame, Senator?