Also, a little ridicule in front of the press never hurts - like:
"Who's the democratic candidate today?"
"I encourage my opponent, whoever he happens to be today, to a discussion of the issues."
"This has been a good week. I already beat several Democrats: first Torricelli, then Menendez, then Pallone, and now it's Lautenberg. Am I forgetting anyone?"
"I apologize I took an evening off the campaign trail for a quite evening with my wife. Do the Democrats have a new candidate again?"
And next week he can add: "This has been a slow week - only one Democrat to campaign against."
Very good!