even that is possible. a source tells cnn the four candidates being interviewed for the job are republican senator john cornyn of texas, andrew mccabe, alice fisher, and judge michael garcia. do trump supporters back the president on his dramatic firing of james comey? here now is ed lavendera. reporter: to more than 50 years, henry lewis has sold chevy cars and trucks in canton, texas. you wrote this book for your grandkids? yeah. reporter: full of life lessons. but in his stair sbpare time, h wrote a book for his granddaughter and he says page 10 can help explain a lot especially trump s firing of james comey. he s a showboat, a grand stander. reporter: if your presentation is on a sixks txthe