The liberal interest group Allied Progress launched a six-figure advertising buy this week in a bid to pressure Republicans to oppose President-elect-Trump’s pick for treasury secretary.

Television spots are on the air in Arizona and Nevada, where Republican Sens. Jeff Flake and Dean Heller are up for re-election in 2018 and Democrats are hoping to scare Republicans into opposing Steven Mnuchin’s confirmation or cause them problems at the ballot box. Various Trump Cabinet nominees are under attack from liberal groups.