Some liberals keep ruining the idea that public radio is an oasis of civility and nonpartisanship. Take Bob Collins, a longtime political editor at Minnesota Public Radio. Anthony Gockowski of the Minnesota Sun site pointed out some Twitter savagery from Collins (account name @MyLittleBloggie). Many tweets are just the usual Democrat hack stuff -- Trump should resign, his supporters are rats. But on Friday, Collins erupted in hate, suggesting Republicans should commit suicide by shooting themselves in the chest.