WASHINGTON (CNN) – As the nation prepares for the inauguration of President-elect Barack Obama, a leading Democrat is not letting up in his criticism of President George W. Bush. “I really do believe President Bush is the worst president we’ve ever had,” Senate Majority Leader Harry Reid said Sunday on NBC’s “Meet the Press.” Reid pointed to Bush’s failed plan to privatize the Social Security program and also said Bush “has done his very best to destroy Medicare” in order support his assessment of Bush’s presidency. Asked by David Gregory if he had any regrets about his persistent criticism of Bush, Reid responded, “I am who I am.” “I think you just have to call things the way you see them.”