Joseph McKenna, Wheeler v. City and County of Denver…
“ The merits of the controversy are not involved. The sole question is whether there was collusion to give the court jurisdiction of the cause; and, of course, the existence of collusion implies the existence of fraud. Is fraud shown? Between the parties there is the requisite diversity of citizenship, requisite amount, and the complainants (appellants here) had such relation to the matters charged as to give them a standing to litigate their legality. They were solicited to bring the suit, however, and they were indemnified against liability for cost and counsel fees. ”
