His eyes turn to her for a second and he smirks.

"Vying for the roll of Chancellor are you? I confess: the Romanoff Institute does have a ring to it." He's joking. For now at least. If Natasha turned around and told him she was hoping to overthrow Sylvia though, he would help her without question, as long as he didn't have to get his hands dirty. Cesare has always hated Sylvia. He doesn't try to hide that. At least he won't to Natasha.

See? There's an opportunity. It's working already.