He’s not going to try to make her respond - he’s going to provide his own narrative about her and let her stew in her own silence about it.
Otherwise she’ll just clam up anyway. This way, whenever she does finally talk, she’s always responding to his narrative, or letting his narrative stand because of her silence. And “his” narrative will be nothing but a hammering on everything she’s done. After all, it’s not like he doesn’t have a target rich environment - it seems every damn illegal or immoral scheme on the planet in the last quarter-century has Hillary’s hands in it. It’s astonishing, in fact, how BUSY she’s been.
/bingo