No, all that they had was a bunch of "opinion" which is meaningless.

Of the only court case they tried to use, the ruling was because of the scope of congresses request and the court implied if they had narrowed it, they might have had a better case and won. As a result of stepping outside the bounds of what they were permitted, the Court decided that they violated the constitution in terms of free speech and press. This impeachment is a completely different beast and nothing about that case is applicable.