Bob Kerrey's Senate Campaign already dogged by "backroom deal"

From Politico:

Harry Reid made Democrat Bob Kerrey a special promise if he’d jump into the Nebraska race for his old Senate seat. So what was it: a chance to reclaim his senatorial seniority? A plum committee gavel? Campaign cash for his race?
Nobody will say, but one thing is certain: Questions swirling around Kerrey’s arrangement will dog the two-term former senator until he or the majority leader come clean.
Republican critics are hammering Kerrey from Washington to Lincoln for cutting a “backroom deal” with Reid. . . .