Never Surrender
No doubt, Rush was humming this Cory Hart ditty when he let loose with this screed against Republican National Committee (RNC) chairman Ken Mehlman's entreaty to the NAACP (via Media Matters; emphasis mine and MM):

LIMBAUGH: President Bush skipping this week's annual NAALCP convention for the fifth straight year, but that's not preventing the White House and the Republican Party from waging a drive to woo African-American voters. Ken Mehlman of the RNC is going to the NAALCP convention, and he is basically going to tell them how the Republican Party of Abraham Lincoln lost its way with African-American voters over the years and how determined the party is to get them back. He said, "We can't call ourselves a true majority unless we reach out to African-Americans and make it the party of Lincoln. There was a time when African-American support turned Democrat, and we didn't do enough to retain it. Now we want to build on the gains we made in the last election." Know what he's going to do? He's going to go down there and basically apologize for what has come to be known as the Southern Strategy, popularized in the Nixon administration. He's going to go down there and apologize for it. In the midst of all of this, in the midst of all that's going on, once again, Republicans are going to go bend over and grab the ankles. They're going to the NAALCP. This is like going into Hyannisport and apologizing to [Sen.] Ted Kennedy [D-MA] for whatever and expecting him to become a supporter. It's like showing up at the [Sen.] Chuck Schumer [D-NY]-Joe Wilson press conference in 20 minutes and saying, "Okay, Ambassador Wilson, we apologize. We hope you'll support us. We can't become a majority party until people like you are voting for us." It is just -- it's absolutely absurd.

Here's a bit more on the Southern Strategy from Wikipedia:

In American politics, the Southern strategy refers to the focus of the Republican party on winning U.S. Presidential elections by securing the electoral votes of the U.S. Southern states. It is also used in a more general sense, in which cultural (especially racial) themes are used in an election — primarily but not exclusively in the American South. The use of the term, and its meaning and implication, are still hotly disputed. [...] In 1948, a group of Democratic congressmen, led by Governor Strom Thurmond of South Carolina, split from the Democrats in reaction to an anti-segregation speech given by Senator Hubert Humphrey of Minnesota, founding the States Rights Democratic or Dixiecrat Party, which ran Thurmond as its presidential candidate. The Dixiecrats, failing to deny the Democrats the presidency in 1948, soon dissolved, but the split lingered. The party's principles were revived by Senator Barry Goldwater of Arizona, the 1964 Republican presidential candidate. Goldwater was notably more conservative than previous Republican nominees like Dwight Eisenhower; Goldwater's opponent in the primary election, Governor Nelson Rockefeller of New York, was widely seen as representing the more moderate, Northern wing of the party. Rockefeller's defeat in the primary is seen as the beginning of the end for moderates and liberals in the Republican party. At this point, the debate begins. The facts are this: in the 1964 presidential race, Goldwater adopted an extremely conservative stance. In particular, he emphasized the issue of what he called "states' rights". As a conservative, Goldwater did not favor strong action by the federal government--for instance, though not a segregationist personally, he strongly opposed the Civil Rights Act of 1964 on the grounds that, first, it was an intrusion of the federal government into the affairs of states and second, it was an interference with the rights of private persons to do business, or not, with whomever they chose. This was a popular stand in the Southern states; whether or not this was specifically a tactic designed to appeal to racist Southern white voters is a matter of debate. Regardless, the only states that Goldwater won in 1964 besides Arizona, were five Deep Southern states, Louisiana, Mississippi, Alabama, Georgia, and South Carolina.