David Koch reportedly said that the Republican nominee "should be Scott Walker."
"I would not like to see her win," comedian Roseanne Barr said in an interview Monday.
He will visit Poland, Germany and Estonia.
He's the latest Republican to pass on the open Senate race.
The Ohio GOP governor is launching a 527 group, New Day for America, as he weighs a run.
Most N.J. voters think the governor knew about the order but didn't give it himself.
Sarah Ferris 04/20/15 12:07 PM EDT
The Manhattan Institute’s Avik Roy will join the former Texas governor's likely campaign.
The justices questioned whether black voters are spread across enough districts.
Senate Democrats need to pick up five seats to regain a majority.