While many Republicans have opted to keep their powder dry, issuing statements about carefully reviewing President Obama's pick to join the high court, Roberts flatly stated he wouldn't support Sotomayor.
"I do not plan to vote for her," Roberts told radio host Chris Stigall on KCMO Talk Radio 710 this morning.
"I voted no in 1998. I did not feel she was appropriate on the appeals court," Roberts said. "Since that time, she has made statements on the role of the appeals court I think is improper and incorrect."
Other lawmakers have expressed similar complaints about Sotomayor, but no others have yet come out to state that they'll vote against her.