Republicans seek to de-legitimize the criticism of Bush by decrying its supposed, shrill "incivility". But we should remember that in the 90's Republicans went beyond uncivil discourse to actual or threatened violence, viz:
The Republican who kamikazed an airplane into the WH
The Republican who sprayed the WH with assault weapons fire
Senator Jesse Helms' implied threat to Clinton about visiting Army bases
The aborting of Hillary Clinton's healthcare bus tour because of threats of violence
The bombing in Oklahoma City was inspired by the reckless anti-government language of Gingrich and the Republican moral support for militias.