Conservative columnist George Will believes that Republican presidential candidate Herman Cain's sexual harassment scandal is a "test" for Republicans.

"A rule is when there are four women, there may be 24," Will told ABC's Christiane Amanpour Sunday. "There's a pattern here. He's says there's no pattern because all four are not telling the truth. Well, we shall see."

"For Republicans, it is a teachable moment because Republicans have said over and over again, character matters in leadership. We have this powerful government. The more power the government has, the more character matters in the chief executive. And this is a test for them."

Democratic strategist Donna Brazile explained that Cain had received a "martyr status" in some Republican circles.

"That may be the wrong message to send to someone who is a novice at presidential politics," she said. "The truth is that he was defined, he was defensive -- four women, two have come out and they went right ahead and started attacking those two women. Two are still anonymous. He attacked former Speaker Pelosi. He made fun of Anita Hill. This is not a good sign of a candidate who would like to remain a frontrunner in the Republican race."