THE DEFENDER OF OUR DISCOURSE…. A whole lot of people have exploited Sen. Jim DeMint’s (R-S.C.) “Waterloo” remarks this week, and had a fair amount of success. The right-wing senator’s remarks were callous and craven, and his rivals have taken advantage of the opportunity he handed them.

Apparently, DeMint isn’t enjoying the attention. (via Christopher Orr)

Sen. Jim DeMint sharply responded to a Democratic National Committee ad Wednesday that criticized the South Carolina Republican for stating that defeating President Obama’s health care plan “will be his Waterloo.”

The ad states, “Sen. Jim DeMint is playing politics with our health care, putting the special interests in Washington ahead of South Carolina families and businesses. The only plan Jim DeMint supports is no plan at all.”

DeMint said the ad was full of “false personal attacks.”

“It’s disappointing that President Obama has lowered the discourse of this important debate with false personal attacks,” he said in a statement.

Yes, if there’s one lawmaker who can credibly stand up in support of a better, more honorable, political discourse, it’s Jim DeMint. It was, after all, DeMint who said, “If we’re able to stop Obama on this it will be his Waterloo. It will break him.”

Two weeks ago, DeMint told an audience at the National Press Club that the United States is currently “about where Germany was before World War II.” Last week, DeMint said, “I am not going to be able to persuade my colleagues to do the right things, so I am just going to have to create pain.” Three weeks ago, DeMint told a far-right magazine that “most members of Congress lean socialist,” and described Social Security, Medicare, and the existence of a public school system as threats to a functioning democracy.

And these are just some of his “greatest hits” from this month.

DeMint thinks Obama has “lowered the discourse”? Tell us another one, senator.

Steve Benen

Follow Steve on Twitter @stevebenen. Steve Benen is a producer at MSNBC's The Rachel Maddow Show. He was the principal contributor to the Washington Monthly's Political Animal blog from August 2008 until January 2012.