The Bush campaign became part of the general SBVT controversy when McCain condemned the first SBVT ad, and said, "I hope that the president will also condemn it." The Bush campaign did not condemn SBVT or the SBVT ads. The campaign did not endorse the group either, stating "We have not and we will not question Senator Kerry's service in Vietnam." Kerry was dismissive of this statement, saying, "Of course, the President keeps telling people he would never question my service to our country. Instead, he watches as a Republican-funded attack group does just that." Kerry also alleged that SBVT was "a front for the Bush campaign. And the fact that the President won’t denounce what they’re up to tells you everything you need to know—he wants them to do his dirty work". When pressed on the issue, President Bush called for an end to all 527 group political advertisements, and challenged Kerry to do the same.